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问题 选择题

She _____ this book for nearly three weeks.   [ ]

A. has borrowed    

B. has lent      

C. has bought      

D. has kept

答案

答案：D

阅读理解

阅读理解。

     Happiness is for everyone.  In fact, ①happiness is always around you if you put

your heart into it. When you are in trouble at school, your friends will help you; when you study hard at your lessons, your parents are always taking good care of your life and your health, when you get success, your friends will congratulate 'you. When you do something wrong, people around you will help you to correct it. And when you do something to others,  you will feel happy. too. All these are your happiness. If you notice a bit of them; you can find that happiness is always around you.②Happiness is

not the same as money, it's a feeling of your heart. When you are poor, you can also be very happy, because you have something else that can't be bought with money.

When you meet with difficulties, you can say loudly you are very happy. because you have more chances to challenge(挑战)yourself. So you cannot always say you are

poor and you have a bad luck.  ③If you take every change you get, you can be a

happy and lucky person.

1. 将①处改为否定句形式（意义不变）。

                                                                              

2．将②处译成汉语。

                                                                              

3．将③处改为so that引导的目的状语从句。

                                                                              

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填空题

设u=u(x，y)满足

，则u(x，y)=______.
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