练习<br>1. The word precious is closest in meaning to (  ).<br>A. initialB. exact<br>C. scarceD. valuable<br><br>2. The word exposed is closest in meaning to (  ).<br>A. identifiedB. explained<br>C. are visibleD. located <br><br>3. The word threatened is closest in meaning to (  ).<br>A. preventedB. endangered<br>C. rejectedD. restricted <br><br>4. The word delicate is closest in meaning to (  ).<br>A. complexB. fragile<br>C. predictableD. valuable <br><br>5. The word propulsion in the passage is closest in meaning to (  ).<br>A. moving forwardB. weight decrease<br>C. direction changeD. staying afloat <br><br>6. The word progressively in the passage is closest in meaning to (  ).<br>A. increasinglyB. openly<br>C. impressivelyD. objectively<br><br>7. The phrase devoid of in the passage is closest in meaning to (  ).<br>A. except forB. lack in<br>C. consist of D. hidden by<br><br>8. Matching <br>disappearnot have walked on land<br>within certain limitstop<br>hindconceal<br>not muchfully marine<br>reardisguise<br><br>consequencemove forward<br>absorptionabsorb<br>reductionoriginal <br>propulsionstress<br>border areahave difficulty adjusting to<br>pressureresult<br>diminished capacitymargin<br>naturalloss<br><br>problemsink down into<br>extremesignificant<br>becausetremendous<br>largeresult from <br>greatseriousness<br>absorptionvast<br><br>答案<br>1. D 2. C 3. B 4. B 5. A 6. A 7. B<br>8. ①disappear=stop②within certain limit=not much<br> ③internal=internally④conceal=disguise<br> ⑤fully marine=not have walked on land⑥rear=hind <br><br> ①consequence=result②absorption=absorb<br> ③reduction=loss④propulsion=move forward<br> ⑤border area=margin⑥pressure=stress<br> ⑦diminished capacity=have difficulty adjusting to⑧natural=original <br><br> ①problem=seriousness②extreme=significant<br> ③because=result from④large=vast<br> ⑤great=tremendous⑥absorption=sink down into¬¬<br>
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