题目内容

13.-Do you know the little boy _______ is helping the old man cross the road?
-No.But how nice he is!(  )
A.whichB.whoC.whom

分析 你认识那个正在帮老人过马路的小男孩吗?--不认识.但是他真是好人.

解答 答案:B
根据句子成分,可知_______ is helping the old man cross the road作定语从句修饰先行词the little boy,先行词为人,故要用关系词who(做主语或宾语)、whom(做宾语)、whose(做定语)或that(做主语或宾语).根据关系词位于谓语动词之前,做的是主语,故用who或that.故选B.

点评 本题考查先行词为人的时候关系词的用法.注意区分B与C选项.C选项只能在定语从句中做宾语.

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3.Do you think that living a hungry life is last century's story?Well,it may be this century's headline.
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    What's causing food shortages?There are several reasons.
    There are now more droughts and floods.This is very harmful to farmer sand their ability to grow food.
    Besides,with the growing population,feeding everyone becomes more difficult.There are a little more than seven billion people in the world.By 2050,the world population will be more than nine billion.
    Another reason is food waste.The average person throws away 50kg of food every year.
    How can we help with food shortages?The easiest way is to cut down on food waste.
    Next time before throwing away the food on your plate,just think how much work has been done to make it.By buying less,we waste less.This takes the pressure off producing so much food.And it helps to solve the problem of food shortage.
    You can also ask your schoolmates to join you.
    In 2013,researchers at Kansas State University in the US put up shortanti-waste slogans(标语) in dining rooms"ThinkBefore You Waste".Guess what happened?Students wasted fifteen percentless food after that!
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Reasons of food shortage(56)More droughts and floods
The growing population.
 (57)Food waste
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Ask the other students to join in your anti-waste work.
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