A year later，with the nation‘s economy ________， Bush’s approval rating dropped below 40 percent.
A. in power
B. in trouble
C. in hand
D. in part
2.There is the appreciation of the salient historical truth ________ the aging of advanced societies has been a sudden change.
A. which
B. what
C. that
D. how
3.Robots differ from automatic machines ________ after completion of one specific task，they can be reprogrammed by a computer to do another one.
A. in case
B. in that
C. in which
D. in time
4.Basically，these attitudes amount to a belief ________ leisure can and should be put to good use.
A. which
B. that
C. what
D. how
5.The professor worked for 7 hours at a ________.
A. stretch
B. extend
C. expand
D. prolong
6.If an earthquake occurred，some of the one-storey houses ________.
A. might be left stand
B. might leave to be standing
C. might be left to stand
D. might be left standing
7.________， he had no time to rest.
A. As he was tired
B. If he was tired
C. Tired as he was
D. Now that he was tired
8.Since we have a focused subject， we should not talk ________.
A. at once
B. at hand
C. at intervals
D. at random
9.Why do you blame him for his poor judgment on the matter ______ he really needs is encouragement?
A. when that
B. since that
C. when what
D. now that
10.The doctors are ________ about the guidelines under which they can carry out euthanasia.
A. at a stretch
B. at a loss
C. at random
D. at length
1.正確答案：B答案解析：in trouble：陷入困境。由于經(jīng)濟陷入困境，所以支持率下降了很多，符合句意。
2.正確答案：C答案解析：本句中that引導的也是同位語從句。
3.正確答案：B答案解析：in that意思是：在于，因為。解釋differ from automatic machines的具體方面。
4.正確答案：B答案解析：空格前面是belief，后面是一個結構完整的句子，解釋說明belief的具體內(nèi)容。所以用that引導這個同位語從句。
5.正確答案：A答案解析：此題考查的是固定詞組搭配。at a stretch一口氣地。
6.正確答案：D答案解析：be left……：被置于……的境地。它是leave sth……的被動式。standing：站立的，固定的，直立的。be left加形容詞是常用的一種表達方式。
7.正確答案：C答案解析：譯文：盡管他很累，他也沒有時間休息。此題考查的是讓步狀語從句，從句中表語提前。
8.正確答案：D答案解析：譯文：既然我們已經(jīng)有了命題，我們就不應漫無邊際地交談。此題考查對固定短語的掌握情況。at once立刻;at hand在附近，在手頭，即將發(fā)生;at intervals間或，不時;at random隨便，任意。
9.正確答案：C答案解析：譯文：當他真正需要鼓勵時，你為什么責備他的拙劣判斷。此題考查準確判斷句子結構。when引導時間狀語從句，what he really needs充當這個時間狀語從句的主語。
10.正確答案：B答案解析：本題考查的是短語區(qū)分。A.不休息地，連續(xù)地;B.不知所措，茫然，不了解;C.任意的，隨便的;D.最后，終于。句意：醫(yī)生們不了解執(zhí)行安樂死的準則。
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