Question

【題目】B. Choose the words or expressions and complete the passage (選擇最恰當(dāng)?shù)膯卧~或詞語完成短文):

Number sense is not the ability to count. It is the ability to recognize a change in number. Human beings are born with this ability. Surprisingly, ______ show that many animals are, too. For example, many birds have good number sense. If a nest (巢) has four eggs and you remove one, the bird will not notice. However, if you remove two, the bird generally leaves. This means that the bird ______ the difference between two and three.

Another interesting test showed a bird’s ______ number sense. A man was trying to take a photo of a crow that had a nest in a tower, but the crow always left when she saw him coming. The bird did not ______ until the man left the tower. The man had an idea. He took another man with him to the tower. One man left and the other stayed, but they weren’t successful in

fooling the bird. The crow stayed away until the second man left, too. The test was ______ with three men and then with four men. It was not until five men went into the tower and only four left that they finally managed to take a photo.

How good is a human’s number sense? It’s not very good. For example, babies about fourteen months old ______ notice if something is taken away from a small group. But when the number goes beyond three or four, the children are often very confused.

It seems that number sense is something we have in common with many animals in this world, and that our human ability is not much better than a cow’s.

【1】A.ideasB.plansC.experimentsD.proverbs

【2】A.went outB.found outC.looked outD.turned out

【3】A.forgetfulB.friendlyC.amazingD.silly

【4】A.escapeB.returnC.flyD.sing

【5】A.repeatedB.mentionedC.noticedD.produced

【6】A.neverB.rarelyC.properlyD.usually

Answer 1

【答案】

【1】C

【2】B

【3】C

【4】B

【5】A

【6】D

【解析】

數(shù)感不是指數(shù)數(shù)的能力。而是能夠意識(shí)到數(shù)量上的改變。不僅人類天生具有這種能力，動(dòng)物同樣有這種能力。本文分別介紹了人類和動(dòng)物的數(shù)感能力。

【1】句意：實(shí)驗(yàn)表明很多動(dòng)物也有這種能力。

ideas想法；plans計(jì)劃；experiments實(shí)驗(yàn)；proverbs諺語。根據(jù)For example后舉鳥對(duì)蛋數(shù)量的感知以及Another interesting test可知此處應(yīng)該為實(shí)驗(yàn)研究表明。故選C。

【2】句意：這意味著鳥發(fā)現(xiàn)了兩個(gè)和三個(gè)的區(qū)別。

went out離開；found out發(fā)現(xiàn)；looked out像外看；turned out結(jié)果表明。主語是the bird，因此排除D。根據(jù)However, if you remove two, the bird generally leaves.句意可知鳥發(fā)現(xiàn)了區(qū)別所以離開了。故選B。

【3】句意：另一個(gè)有趣的測(cè)試顯示了鳥驚人的數(shù)感。

forgetful健忘的；friendly友好的；amazing驚人的；silly愚蠢的。根據(jù)上一段的實(shí)驗(yàn)以及…many animals are, too.可知鳥是有數(shù)感的。此空是副詞形容詞作定語修飾number sense，只有C符合句意。故選C。

【4】句意：直到人離開塔烏鴉才會(huì)回來。

escape逃跑；return回來；fly飛；sing唱歌。not…until表示“直到……才”，根據(jù)but the crow always left when she saw him coming.“在她看到人的時(shí)候?yàn)貘f總是飛走。”以及The crow stayed away until the second man left, too.�？赏茰y(cè)烏鴉直到人走了以后，她才會(huì)回來。故選B。

【5】句意：這個(gè)測(cè)驗(yàn)用三個(gè)人，然后四個(gè)人反復(fù)試驗(yàn)。

repeated反復(fù)；mentioned提到；noticed注意到；produced產(chǎn)生。根據(jù)with three men and then with four men. It was not until five men went into the tower and only four left that they finally managed to take a photo.可知他們用三個(gè)人、四個(gè)人、五個(gè)人反復(fù)進(jìn)行實(shí)驗(yàn)。故選A。

【6】句意：例如，十四個(gè)月大的寶寶如果小群體里有東西被拿走他總能注意到。

never從不；rarely很少地；properly適當(dāng)?shù)兀?/span>usually通常。根據(jù)But when the number goes beyond three or four, the children are often very confused. 可知當(dāng)數(shù)量超過三個(gè)或四個(gè)，孩子經(jīng)常很困惑。but表示轉(zhuǎn)折關(guān)系，可以推測(cè)but之前表示，寶寶通常都能注意到。usually符合句意。故選D。