题目内容

15.To keep the road safer,the new traffic rules must ________ by everyone.(  )
A.followB.be followedC.are followed

分析 为了保证道路的更加安全,每个人必须遵守新的交通规则.

解答 答案B.根据"the new traffic rules must ________ by everyone"可知主语the new traffic rules"新交通规则",是follow这个动作的承受者,二者形成被动关系,所以要用被动语态.句中含有情态动词must,故用含有情态动词的被动语态,其结构为情态动词+be+过去分词,故选B

点评 要掌握情态动词被动语态的结构,还要分析主语是不是动作的承受者,才能做出正确选择

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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.
    The world has growing worries about a global food shortage.Right now,there are still 870 million hungry people in the world,according to a survey of the UN's Food and Agriculture Organization.Children can't escape this,either.Around fifteen million children die of hungry each year.
    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!
    The author of the study said,"Youdon't need a huge activity to make a difference."
Reasons of food shortage(56)More droughts and floods
The growing population.
 (57)Food waste
Ways of (58)helping with food shortage(59)Cut down on food waste
Ask the other students to join in your anti-waste work.
Your understanding of the last sentence.(60)Stop wasting from ourselves and from tiny/little things.

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