新概念英语第四册选择题备考:Exploring the sea-floor

2021-06-01 16:45:00来源:网络

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  Multiple choice questions 多项选择题

  Choose the correct answers to the following questions.

  Comprehension 理解

  1,A hundred years ago, probably no one thought the deep ocean floor was ____.

  a.two dimensional

  b.a hazard for navigation

  c.irregular

  d.flat

  2,The H.M.S. Challenger expedition ____.

  a.gave the study of the ocean floor scientific respectability

  b.took a sounding of over 2,400 fathoms

  c.was devoted to dredging the ocean

  d.was devoted to laying submarine cables

  3,Continents and islands are standing on ____.

  a.the topography of the sea bed

  b.the earth's crust

  c.the greater part of the earth's surface

  d.superimposed features of the continents

  4,The continental slope ____.

  a.starts immediately at the seashore

  b.consists entirely of steep, probably vertical cliffs

  c.ends at the 100-fathom mark

  d.gradually stretches out to the sea bed

  Structure 句型

  1,It was only____1869 that H.M.S. Porcupine obtained soundings. (11.5-6)

  a.on

  b.at

  c.until

  d.in

  2,The sea floor became a subject ____studying.

  a.worthy

  b.worth

  c.is worth

  d.worths

  3,Submarine cables were ____across the Atlantic. (1.9)

  a.lying

  b.lain

  c.laid

  d.lied

  4,It is ____to regard the sea-floor as the earth's crust. (1.14)

  a.less reasonable

  b.enough reasonable

  c.reasonable enough

  d.so reasonable

  Vocabulary 词汇

  1,The Royal Society was allowed the ____of the H.M.S. Porcupine. (11.5-6)

  a.use

  b.loan

  c.rental

  d.exploration

  2,A burst of activity ____with the laying of submarine cables … (1.9)

  a.coupled

  b.communicated

  c.connected

  d.reckoned

  3,——together with the islands and other ____of the oceans. (1.15)

  a.studies

  b.observations

  c.characters

  d.characteristics

  4,——after being ____from the continental masses. (11.23-24)

  a.worn down

  b.worn through

  c.worn away

  d.worn out

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