20．老師的贊賞給了我很大的鼓舞，這對一名學(xué)生而言非常寶貴．（which）The teacher's compliment（s）gave me（filled me with）a great encouragement（inspiration），which is so precious for a student．．

分析 The teacher's compliment（s） gave me（filled me with） a great encouragement（inspiration），which is so precious for a student．

解答 The teacher's compliment（s） gave me（filled me with） a great encouragement（inspiration），which is so precious for a student．
本句是對過去事實的陳述，故主句用一般過去時，后面從句用一般現(xiàn)在時表達對老師贊賞的評價．
由句意"這對一名學(xué)生而言非常寶貴"可知，本句可運用一個which引導(dǎo)非限制性定語從句來表達．give sb（fill sb with） a great encouragement（inspiration）給人鼓舞，be precious for sb對某人是寶貴的．

點評 適當(dāng)?shù)氖褂枚ㄕZ從句對于句子的意思表達是很有幫助的，如：
In the presence of so many people he was little tense，which was understandable在那么多人面前他有點緊張，這是可以理解的．

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科目：高中英語 來源： 題型：完形填空

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科目：高中英語 來源： 題型：閱讀理解

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1．Decision-making under Stress
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GM soybeans，has suffered reduced productivity．For instance，a report than analysed nearly two decades of research on mojor GM food crops shows that GM engineering has failed to significantly increase US crop production．
Something else，however，has been on the rise，While GM seeds are expensive，GM companics tell farmers that they will make good profits by saving money on pesticides（殺蟲劑）．On the contrary，US government data show that GM crops in the US have produced an overall increase in pesticide use compared to traditional crops．"The  promise was that you could use less chemicals and boost production．But nether is true，"said Bill Christison，President of the US National Farm Coalition．
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As a matter of fact，scientists see better ways to feed the world．Another World Bank report concluded that GM crops have little to offer to the challenges of worldwide poverty and hunger，because better ways out are available，among which"green"farming is supposed to be the first choice．

57．The author develops the second paragraph mainlyC．
A．by classification                       
B．by comparison
C．by example                              
D．by process
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C．Obtain．
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59．GM companies promise farmers that they will benefit fromB．
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