劍橋雅思7Test1閱讀Passage1答案解析 Let’s go bats

劍橋雅思7Test1閱讀Passage1答案解析 Let’s go bats

劍橋雅思7 Test 1 Passage 1閱讀答案解析

第1題答案：B

對應(yīng)原文：B段：Bats are not the only creatures to face this difficulty today. Obviously the night-flying insects that they prey on must find their way about somehow.

答案解析：原文中提到，蝙蝠并不是今天唯一一種面對該困難的生物。顯然它們捕食的夜間飛行的昆蟲也必須以某種方式找到自己的路徑。后面還說了深海魚類、鯨魚、海豚等。即提到除了蝙蝠之外，其他不依賴視覺進(jìn)行導(dǎo)航的動物的例子。由此確定答案。

第2題答案：A

對應(yīng)原文：A段：In the time when the dinosaurs dominated the daytime economy, our mammalian ancestors probably only managed to survive at all because they found ways of scraping a living at night.

答案解析：原文提到，在恐龍主宰白天的時候，我們哺乳動物的祖文章來自老烤鴨雅思先可能因?yàn)檎业皆谕砩现\生的方式才勉強(qiáng)活了下來。原文中early mammals與題干中mammalian ancestors對應(yīng)，avoid dying out與managed to survive對應(yīng)，由此確定答案為A。

第3題答案：A

對應(yīng)原文：A段：Given that there is a living to be made at night, and given that alternative daytime trades are thoroughly occupied, natural selection has favoured bats that make a go of the night-hunting trade.

答案解析：原文中提到，考慮到晚上仍然可以謀生，而白天的食物資源已經(jīng)被占據(jù)，自然選擇偏愛那些能夠在晚上進(jìn)行捕獵的蝙蝠。即蝙蝠在晚上捕獵的原因。由此確定A為答案。

第4題答案：E

對應(yīng)原文：E段：much of our scientific understanding of the details of what bats are doing has come from applying radar theory to them.

答案解析：原文中提到，我們對蝙蝠行為細(xì)節(jié)的理解大多來于雷達(dá)理論的應(yīng)用。題干中的particular discovery與原文中radar theory對應(yīng)，understanding原詞出現(xiàn)，由此確定答案為F。

第5題答案：D

對應(yīng)原文：D段后部： After this technique had been invented, it was only a matter of time before weapons designers adapted it for the detection of submarines.

答案解析：原文中提到，在這一技術(shù)發(fā)明之后，武器設(shè)計者將其應(yīng)用于潛艇偵測只是時間問題。即早期回聲定位的軍事應(yīng)用。由此確定答案為D。

第6題答案：phantom

對應(yīng)原文：D段：although the sensation may be referred to the front of the face, like the referred pain in a phantom limb

答案解析：根據(jù)標(biāo)題facial vision定位到D段，根據(jù)pain定位到具體的句子。題干中空對arm or leg起修飾作用，而這兩個詞在原文中被替換為limb，修飾詞是phantom，由此確定答案。

第7題答案：echoes/obstacles

對應(yīng)原文：D段：it turns out, really goes in through the ears. Blind people, without even being aware of the fact, are actually using echoes of their own footsteps and of other sounds, to sense the presence of obstacles.

答案解析：順著上一題往下，根據(jù)ears定位到具體的句子?？涨霸~perceiving與原文中的sense同義替換，又因?yàn)轭}目要求只能填一個詞，而presence沒有什么實(shí)際含義，由此確定答案為obstacles

第8題答案：depth

對應(yīng)原文：D段：Before this was discovered, engineers had already built instruments to exploit the principle, for example to measure the depth of the sea under a ship.

答案解析：根據(jù)before和principle定位到具體的句子。空前詞calculate與measure同義替換，由此確定答案為depth。

第9題答案：submarines

對應(yīng)原文：D段：After this technique had been invented, it was only a matter of time before weapons designers adapted it for the detection of submarines.

答案解析：順著上一題往下，根據(jù)weapons designers和wartime的對應(yīng)定位到具體句子?？涨霸~finding與detection同義替換，由此確定答案為submarines。

第10題答案：natural selection

對應(yīng)原文：E段：natural selection working on bats, had perfected the system tens of millions of years earlier

答案解析：根據(jù)long before與tens of millions of years earlier的對應(yīng)定位到這一句。從題干含義我們可以推測空上填的應(yīng)該某種原因，由此確定答案為natural selection。

第11題答案：radio waves/echoes

對應(yīng)原文：E段：It is technically incorrect to talk about bat ‘radar’, since they do not use radio waves.

答案解析：根據(jù)inaccurate與technically incorrect的對應(yīng)確定具體句子。題目because后半部分的內(nèi)容只是將原文since后的句子主動變被動，很容易確定答案為radio waves。

第12題答案：mathematical theories

對應(yīng)原文： E段：But the underlying mathematical theories of radar and sonar are very similar

答案解析：題目中similar對空其修飾作用，原文中similar做表語，修飾主語mathematical theories，根據(jù)修飾關(guān)系確定答案。

第13題答案：zoologist

對應(yīng)原文： The American zoologist Donald Griffin, who was largely responsible for the discovery of sonar in bats, coined the term ‘echolocation’ to cover both sonar and radar

答案解析：根據(jù)echolocation這一專有名詞定位到具體的句子。從題干內(nèi)容可以推測空上填的是個職業(yè)。而這一句話中唯一可以表示職業(yè)的詞就是zoologist。由此確定答案。

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