We can change an utterance by 1 one word in it with 2 : a good illustration of this is a soldier who can say, e.g., “tanks approaching from the north”, 3 who can change one word and say “aircraft approaching from the north” or “tanks approaching from the west”; but a bird has a single alarm cry, 4 means “danger!”

    This is why the number of 5 that an animal can make is very limited: the great tit (山雀) is a case 6 point; it has about twenty different calls, 7 in human language the number of possible utterances is 8 . It also explains why animal cries are very 9 in meaning.

1. A. replacing B. spelling C. pronouncing D. saying

2. A. ours B. theirs C. another D. others

3. A. so B. and C. but D. or

4. A. this B. that C. which D. it

5. A. signs B. gestures C. signals D. marks

6. A. in B. at C. of D. for

7. A. whereas B. since C. anyhow D. somehow

8. A. boundless B. changeable C. limitless D. ceaseless

9. A. ordinary B. alike C. common D. general

1.A 此題考查上下文理解。下文舉例說(shuō)明的部分提到將一句話的某個(gè)詞換成另外的詞,由此推斷可知,此處選擇replace(代替)。

2.C 表達(dá)用另一個(gè)詞代替,用another。

3.B 此題考查上下文理解,會(huì)說(shuō)一句話和能夠把這句話里的某個(gè)單詞用別的詞替換,這之間表達(dá)的應(yīng)是一種并列關(guān)系。故選B。

4.C 此題考查非限定性定語(yǔ)從句,必須用which。

5.C 動(dòng)物發(fā)出的聲音不能形容為“標(biāo)記”、“記號(hào)”或是“手勢(shì)”,因此,只有signal信號(hào)才是正確選擇。

6.A 此處考查固定搭配。in point指“適用的,相關(guān)的”

7.A 作者將山雀能發(fā)出20種叫聲與人類語(yǔ)言能發(fā)出更多的聲音相比較,這里應(yīng)該選擇轉(zhuǎn)折連詞:whereas(然而)。

8.C 參照上題,此處將人能發(fā)出的聲音數(shù)量與動(dòng)物進(jìn)行比較。boundless(無(wú)界限的),changeable(多變的),ceaseless(不停歇的),因此,正確選項(xiàng)是C。

9.B 根據(jù)上文,動(dòng)物只能發(fā)出有限的聲音,那它們。