问几道英语选择 主要是分析

问几道英语选择 主要是分析
1.Most of us know we should cut down on fat,but knowing such things isn't much help when it____shopping and eating.
A.refers to B.speaks of C.focuses on D.comes to
选D
2.--I'm afraid i can't pass this test.
--____ ____!I'm sure u'll make it
A.Go ahead B.Good luck C.No problem D.Cheer up
选D..Cheer up
3.Don't respond to any E-mails____personal information,no matter how official they look.
A.searching B.asking C.requesting D.questioning
选C B为什么不可以

1.it comes to是个固定搭配.
意思可翻译为面临着.
2.cheer up意思可翻译为鼓足勇气,有点信心.
是用来在别人沮丧的时候激励别人的话.
3.ask一般是用于日常对话中的问问题.
比如.老师问学生问题.用ask.
或者.问路.用ask.
而在这题中.是指较正式的邮件来寻求个人信息.
所以用正式点的request.

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