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2.  預(yù)習(xí)提綱:

(1)    判斷、證明函數(shù)單調(diào)性的通法;

(2)    判斷、證明函數(shù)奇偶性的通法。

試題詳情

20.I’ve never seen anyone run so fast-______David go.

A.just watch                 B.just to watch

C.just watching             D.just having watched

解析:本題考查非謂語(yǔ)動(dòng)詞的用法。根據(jù)句子的意思和語(yǔ)境分析,此處應(yīng)該是祈使句型,所以使用動(dòng)詞原形。

答案:A

試題詳情

19.An excellent idea ______ to me when I woke up this morning.

A.happened      B.broke out     C.thought of       D.occurred

解析:短語(yǔ)occur to sb.表示“(想法、念頭等)想起、浮現(xiàn)”的意思。

答案:D

試題詳情

18.______ that the problem was more than he could deal with,he called the police for help.

A.Having been realized            B.To realize

C.Realized                D.Realizing

解析:本題考查非謂語(yǔ)動(dòng)詞作狀語(yǔ)的用法。根據(jù)主句主語(yǔ)he和動(dòng)詞realize之間的邏輯關(guān)系,此處應(yīng)該表示主動(dòng),故可先排除A、C兩個(gè)表示被動(dòng)的選項(xiàng)。B項(xiàng)表示目的,和語(yǔ)境及句子意思不相符。

答案:D

試題詳情

17.You’ve missed your ______ to speak and you have to wait for another round.

A.turn       ce         C.order       D.opportunity

解析:從后面一句話(huà)所提供的another round“另一輪次”分析,此處應(yīng)該使用turn。

答案:A

試題詳情

16. Being in no great hurry,______.

A.we went the long route with scenery

B.the long,scenic route was our preference

C.we took the long,scenic route

D.our preference was taking the long,scenic route

解析:本題考查非謂語(yǔ)動(dòng)詞作狀語(yǔ)時(shí)的用法。按照英語(yǔ)句子結(jié)構(gòu)的要求,當(dāng)非謂語(yǔ)動(dòng)詞作狀語(yǔ)時(shí),其邏輯主語(yǔ)必須和主句的主語(yǔ)一致,所以先排除A、D兩項(xiàng)。而A項(xiàng)的動(dòng)詞受漢語(yǔ)意思的影響而誤用。

答案:C

試題詳情

15.More and more people choose to shop in a supermarket as it offers a great ______ of goods.

A.variety        B.mixture      C.attention     D.kind

解析:短語(yǔ)a variety of的意思為“豐富多彩的;多種多樣的”。

答案:A

試題詳情

14.I was so badly ill that I couldn’t help ______ the room.

A.clean       B.cleaning      C.being cleaning     D.to be cleaned

解析:根據(jù)語(yǔ)境分析,此處的意思是“病得太重,無(wú)法幫助打掃房間”,不要理解為can’t help doing“情不自禁地做某事”。

答案:A

試題詳情

13.We have to ______ the wheat as soon as possible because a storm is on the way.

A.get away      B.get across       C.get through      D.get in

解析:本題考查動(dòng)詞短語(yǔ)的辨析。短語(yǔ)get in可以表示“收割莊稼”的意思。

答案:D

試題詳情

12.We thought of selling this old furniture,but we’ve decided to ______ it.It might be valuable.

A.hold on to       B.keep up with    C.turn to        D.look after

解析:此題考查短語(yǔ)的正確選用。根據(jù)后句話(huà)的意思,此空中應(yīng)填有“留著(not sell)”的意思的詞,故用A項(xiàng)。

答案:A

試題詳情


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