The lack of eco-friendly habits among the public is thought to be a major ____ of global climate change.

试卷相关题目

• 1All the pictures in this book, ______ otherwise stated, come from those taken by Miss Brown.

  A.unless

  B.until

  C.even if

  D.as if

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• 2Everybody needs calcium, but it is quite possible for a similar person to be totally healthy by eating only________.

  A.as half much　

  B.as much half

  C.half as much as　

  D.half as much

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• 3The manager asked me to______ the report, because he didn't want to speak for a long time at the meeting.

  A.cut out

  B.cut away

  C.cut off

  D.cut down

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• 4_______ is known to us all that the old scientist, for _______ life was hard in the past, still works hard in his eighties.  

  A.It; whom

  B.As; whose

  C.As; whom

  D.It; whose

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• 5_______ his being late again , he lost his job and had to stay at home.

  A.Owe to

  B.As result of

  C.In case of

  D.Because of

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• 6The ____________ of news that a flood is coming is a staff working in the weather bureau.

  A.resource

  B.origin

  C.root

  D.source

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• 7Americans eat_____vegetables per person today as they did in 1910.

  A.more than twice

  B.as twice as many

  C.twice as many as

  D.more than twice as many

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• 8Glass is obviously a wiser choice for the plate as it can easily be recycled and does not take hundreds of years to _____ like plastic.

  A.break off

  B.break out

  C.break down

  D.break into

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• 9The wounded soldier died _____I had a chance to know his name and family.

  A.after

  B.while

  C.until

  D.before

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• 10According to scientists, our mental abilities begin to _______ from the age of 27 after reaching the highest level at 22．

  A.decline

  B.differ

  C.fail

  D.shrink

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