Learn English through classic literature • Five-line readings • Clear US narration
VELMORA ACADEMY
Academy of Archival Languages & Memory Studies
Menu Close
Tom Swift and His Big Tunnel
Tom Swift and His Big Tunnel

Chapter XXI · Chapter 21

Chapter 21 of Tom Swift and His Big Tunnel is here in full — 85 sentences across 17 reading sections, with audio for every sentence and word.

Cover illustration for Tom Swift and His Big Tunnel
Context Illustration Reading 1/17 · 5 lines
English subtitles · tap any word to listen 1 / 5
A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.
Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.
But the results had not been at all what he had hoped for.
"What's to be done, Tom?" repeated the contractor.
"Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."
0:00 / 0:00
Speed 0.75x
AI-generated narration by OpenAI · Slow US English
LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

Tom Swift and His Big Tunnel

Chapter XXI · Chapter 21

Chapter 21 of Tom Swift and His Big Tunnel is here in full — 85 sentences across 17 reading sections, with audio for every sentence and word.

Reading 1/17 · 5 reading units · Lines 1–5

Line 1
A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.
/ə nuː ɪkˈsploʊsɪv ðə jʌŋ ˌɪnˈventər wɑːz ˈaɪdli ˈhændlɪŋ sʌm ˈpiːsəz ʌv ðə ˈveri hɑːrd rɑːk ðæt hæd krɑːpt aʊt ɪn ðə ˈtʌnəl kʌt/
Line 2
Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.
/tɑːm hæd ˈtestɪd ɪt hiː hæd ˈpʌlvəraɪzd ɪt æz wel æz hiː wɑːz ˈeɪbəl hiː hæd ɪɡˈzæmənd ɪt ˈʌndər ðə ˈmaɪkrəskoʊp ənd hiː hæd ˈteɪkən ɡreɪt slæbz ʌv ɪt ənd set ɔːf ˈʌndər ɪt ɔːr ɑːn tɑːp ʌv ɪt ˈtʃɑːrdʒəz ʌv ɪkˈsploʊsɪv ʌv ˈveriəs ˈpaʊər tuː noʊt ðə ɪˈfekt/
Line 3
But the results had not been at all what he had hoped for.
/bʌt ðə rɪˈzʌlts hæd nɑːt bɪn æt ɔːl wʌt hiː hæd hoʊpt fɔːr/
Line 4
"What's to be done, Tom?" repeated the contractor.
Line 5
"Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."
/wel ˈmɪstər ˈtaɪtəs wɑːz ðə ˈænsər ðə ˈoʊnli θɪŋ aɪ siː tuː duː ɪz tuː meɪk ə nuː ɪkˈsploʊsɪv/

Learner Dictionary

These definitions explain words found in the current reading and keep every example grounded in its original sentence.

Oxford-style entry order: headword, part of speech, US IPA, concise definition, contextual example, and audio.

contractor noun US /ˈkɑːntræktər/

someone (a person or firm) who contracts to build things

From this reading “"What's to be done, Tom?" repeated the contractor.”

cropped adjective US /krɑːpt/

(of land or soil) used for growing crops

From this reading “A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.”

explosive adjective US /ɪkˈsploʊsɪv/

serving to explode or characterized by explosion or sudden outburst

From this reading “A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.”

microscope noun US /ˈmaɪkrəskoʊp/

magnifier of the image of small objects

From this reading “Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.”

pulverized adjective US /ˈpʌlvəraɪzd/

consisting of fine particles

From this reading “Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.”

slabs noun US /slæbz/

plural of “slab” — block consisting of a thick piece of something

From this reading “Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.”

tested adjective US /ˈtestɪd/

tested and proved useful or correct

From this reading “Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.”

Titus noun US /ˈtaɪtəs/

a Greek disciple and helper of Saint Paul

From this reading “"Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."”

All words in this reading · 72

Every word in these five lines is listed here, and every one of them can be played on its own.

Dictionary details are shown only when verified; these are not licensed Oxford entries.

AdeterminerUS /ə/

used before a singular noun to mean one of a group, when it is not a particular one

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

ableadjectiveUS /ˈeɪbəl/

(usually followed by “to”) having the necessary means or skill or know-how or authority to do something

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

alladjectiveUS /ɔːl/

(quantifier) used with either mass or count nouns to indicate the whole number or amount of or every one of a class

From this reading But the results had not been at all what he had hoped for.

andconjunctionUS /ənd/

used to join words or parts of a sentence that go together

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

answerverbUS /ˈænsər/

react verbally

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

asconjunctionUS /æz/

at the same time that; because; in the way that

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

atprepositionUS /æt/

in or near a particular place or position

From this reading But the results had not been at all what he had hoped for.

beauxiliary verbUS /biː/

used with a past participle to form the passive, or with -ing for continuous tenses

From this reading "What's to be done, Tom?" repeated the contractor.

beenauxiliary verbUS /bɪn/

the past participle of “be”

From this reading But the results had not been at all what he had hoped for.

ButconjunctionUS /bʌt/

used to introduce something that contrasts with what came before

From this reading But the results had not been at all what he had hoped for.

chargesnounUS /ˈtʃɑːrdʒəz/

plural of “charge” — an impetuous rush toward someone or something

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

contractornounUS /ˈkɑːntræktər/

someone (a person or firm) who contracts to build things

From this reading "What's to be done, Tom?" repeated the contractor.

croppedadjectiveUS /krɑːpt/

(of land or soil) used for growing crops

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

cutverbUS /kʌt/

separate with or as if with an instrument

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

doauxiliary verbUS /duː/

used to form questions and negatives, and to give emphasis

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

doneadjectiveUS /dʌn/

having finished or arrived at completion

From this reading "What's to be done, Tom?" repeated the contractor.

effectnounUS /ɪˈfekt/

a phenomenon that follows and is caused by some previous phenomenon

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

examinedverbUS /ɪɡˈzæmənd/

past form of “examine” — consider in detail and subject to an analysis in order to discover essential features or meaning

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

ExplosiveadjectiveUS /ɪkˈsploʊsɪv/

serving to explode or characterized by explosion or sudden outburst

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading But the results had not been at all what he had hoped for.

greatadjectiveUS /ɡreɪt/

relatively large in size or number or extent; larger than others of its kind

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

hadauxiliary verbUS /hæd/

the past form of “have”, used to form the past perfect

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

handlingnounUS /ˈhændlɪŋ/

manual (or mechanical) carrying or moving or delivering or working with something

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

hardadjectiveUS /hɑːrd/

not easy; requiring great physical or mental effort to accomplish or comprehend or endure

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

hepronounUS /hiː/

a man, boy, or male animal already mentioned, as the subject

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

hopedverbUS /hoʊpt/

past form of “hope” — expect and wish

From this reading But the results had not been at all what he had hoped for.

IpronounUS /aɪ/

the person speaking or writing, as the subject of the verb

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

idlyadverbUS /ˈaɪdli/

in an idle manner

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

inprepositionUS /ɪn/

inside something, or within a place, period, or state

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

inventornounUS /ˌɪnˈventər/

someone who is the first to think of or make something

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

isauxiliary verbUS /ɪz/

the form of “be” used with he, she, it, or a singular noun

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

makeverbUS /meɪk/

engage in

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

microscopenounUS /ˈmaɪkrəskoʊp/

magnifier of the image of small objects

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

MrnounUS /ˈmɪstər/

a form of address for a man

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

NewadjectiveUS /nuː/

not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

notadverbUS /nɑːt/

used to make a word, phrase, or sentence negative

From this reading But the results had not been at all what he had hoped for.

notenounUS /noʊt/

a brief written record

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

offadverbUS /ɔːf/

from a particular thing or place or position (“forth” is obsolete)

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

onprepositionUS /ɑːn/

touching and supported by a surface

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

onlyadverbUS /ˈoʊnli/

and nothing more

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

orconjunctionUS /ɔːr/

used to join alternatives or possibilities

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

outadjectiveUS /aʊt/

not allowed to continue to bat or run

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

piecesnounUS /ˈpiːsəz/

plural of “piece” — a separate part of a whole

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

powernounUS /ˈpaʊər/

possession of controlling influence

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

pulverizedadjectiveUS /ˈpʌlvəraɪzd/

consisting of fine particles

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

repeatedadjectiveUS /rɪˈpiːtɪd/

recurring again and again

From this reading "What's to be done, Tom?" repeated the contractor.

resultsnounUS /rɪˈzʌlts/

plural of “result” — a phenomenon that follows and is caused by some previous phenomenon

From this reading But the results had not been at all what he had hoped for.

rocknounUS /rɑːk/

a lump or mass of hard consolidated mineral matter

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

seeverbUS /siː/

perceive by sight or have the power to perceive by sight

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

setverbUS /set/

put into a certain place or abstract location

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

slabsnounUS /slæbz/

plural of “slab” — block consisting of a thick piece of something

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

someadjectiveUS /sʌm/

(quantifier) used with either mass nouns or plural count nouns to indicate an unspecified number or quantity

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

takenadjectiveUS /ˈteɪkən/

understood in a certain way; made sense of

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

testedadjectiveUS /ˈtestɪd/

tested and proved useful or correct

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

thatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

ThedeterminerUS /ðə/

used before a noun that is already known, already mentioned, or the only one of its kind

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

thingnounUS /θɪŋ/

a special situation

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

TitusnounUS /ˈtaɪtəs/

a Greek disciple and helper of Saint Paul

From this reading "Well, Mr. Titus," was the answer, "the only thing I see to do is to make a new explosive."

toparticleUS /tuː/

used before the base form of a verb to make the infinitive

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

TomnounUS /tɑːm/

male cat

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

topnounUS /tɑːp/

the upper part of anything

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

tunnelverbUS /ˈtʌnəl/

move through by or as by digging

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

underprepositionUS /ˈʌndər/

below or beneath something; less than

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

variousadjectiveUS /ˈveriəs/

of many different kinds purposefully arranged but lacking any uniformity

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

veryadjectiveUS /ˈveri/

precisely as stated

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

wasauxiliary verbUS /wɑːz/

the past form of “be” used with I, he, she, it, or a singular noun

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

welladverbUS /wel/

(often used as a combining form) in a good or proper or satisfactory manner or to a high standard (“good” is a nonstandard dialectal variant for “well”)

From this reading Tom had tested it, he had pulverized it (as well as he was able), he had examined it under the microscope, and he had taken great slabs of it and set off under it, or on top of it, charges of explosive of various power to note the effect.

whatpronounUS /wʌt/

used to ask for information about something

From this reading But the results had not been at all what he had hoped for.

What's

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading "What's to be done, Tom?" repeated the contractor.

youngadjectiveUS /jʌŋ/

(used of living things especially persons) in an early period of life or development or growth

From this reading A New Explosive The young inventor was idly handling some pieces of the very hard rock that had cropped out in the tunnel cut.

Chapter 21 of Tom Swift and His Big Tunnel by Victor Appleton holds 85 sentences, grouped into 17 reading sections of at most 5 sentences. The text is the public-domain source, unabridged, and the chapter records which sentences cover which part of the work so that nothing is dropped. Every word can be tapped for its pronunciation and dictionary entry.

What does chapter 21 of Tom Swift and His Big Tunnel contain?

Chapter 21 holds 85 sentences of Tom Swift and His Big Tunnel, unabridged, divided into 17 reading sections.

This page carries chapter 21 of Tom Swift and His Big Tunnel by Victor Appleton exactly as it stands in the public-domain source edition, without abridgement. It runs to 85 sentences, grouped into 17 sections of at most 5 sentences so that a reader can take the chapter in steady, finishable pieces. The chapter also stores a coverage record mapping every one of its sentences to a part of the work, which is how the edition demonstrates that no line was dropped.

How do I study chapter 21 of Tom Swift and His Big Tunnel?

Work through the 17 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 17 sections in this chapter is short enough to read once, hear once, and then re-read with the vocabulary in view. Tapping a word plays it alone and opens its dictionary entry with IPA, part of speech and meaning, so the reader is never forced to guess a pronunciation from spelling. Working section by section keeps a long chapter from becoming an undifferentiated wall of text, which is the usual reason a reader abandons a work of this period.

Can chapter 21 be read aloud to me?

Yes — every sentence and every individual word in chapter 21 can be played aloud in United States English.

Audio covers the whole chapter: any sentence can be played, and any single word within it can be played on its own. The voice uses United States English. For a work of this period that matters, because spelling is an unreliable guide to pronunciation for vocabulary that has fallen out of daily use, and a learner who guesses wrong tends to keep the error. Hearing the word in its own sentence, and then alone, settles it.

Questions about reading Tom Swift and His Big Tunnel

Common questions about reading Tom Swift and His Big Tunnel by Victor Appleton on this page, its source edition and its audio.

Is this the complete text of Tom Swift and His Big Tunnel?

Yes. All 3230 sentences of Project Gutenberg eBook #953 are kept, with a record of which sentences cover which part.

Which edition of Tom Swift and His Big Tunnel is used?

Project Gutenberg eBook #953, a public-domain edition. The Project Gutenberg header, footer and licence are removed.

How long does Tom Swift and His Big Tunnel take to read?

About 269 minutes of reading across 646 sections of 5 sentences each, at an unhurried pace.

How to read Tom Swift and His Big Tunnel section by section

How to work through Tom Swift and His Big Tunnel section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 25 chapters of Tom Swift and His Big Tunnel to begin.

  2. Read one section

    Each section holds 5 sentences; read it once through.

  3. Listen and tap

    Play the section aloud, then tap any unfamiliar word for its entry.

Vocabulary met early in Tom Swift and His Big Tunnel

Words and structures a reader meets early in Tom Swift and His Big Tunnel, each tappable for pronunciation and meaning.

Swift
A word that appears in the opening chapter of Tom Swift and His Big Tunnel; the reader can tap it to hear it and see its dictionary entry.
Seated
A word that appears in the opening chapter of Tom Swift and His Big Tunnel; the reader can tap it to hear it and see its dictionary entry.
Laboratory
A word that appears in the opening chapter of Tom Swift and His Big Tunnel; the reader can tap it to hear it and see its dictionary entry.
Engaged
A word that appears in the opening chapter of Tom Swift and His Big Tunnel; the reader can tap it to hear it and see its dictionary entry.