0  250933  250941  250947  250951  250957  250959  250963  250969  250971  250977  250983  250987  250989  250993  250999  251001  251007  251011  251013  251017  251019  251023  251025  251027  251028  251029  251031  251032  251033  251035  251037  251041  251043  251047  251049  251053  251059  251061  251067  251071  251073  251077  251083  251089  251091  251097  251101  251103  251109  251113  251119  251127  447090 

26. A small plane crashed into a hillside five miles east of the city, ______ all four people on board.

A. killed         B. killing               C. kills             D. to kill

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25. Unsatisfied ______ with the payment, he took the job just to get some work experience.

A. as was he      B. as he was            C. he was as         D. was he as

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24. With a little more care, you _____ this traffic accident.

   A. could avoid     B. could have avoided      C. would avoid       D. must have avoided

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23. ----- I’ve read another book this week.

 ----- Well, maybe ________ is not how much you read but what you read that counts.

A. this          B. that              C. there           D. it

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22. My suggestion is that the old houses ___________ .

A. be pulled down  B. will be pulled down  C. are pulled down  D. should pull down  

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第一节 单项填空(共15小题;每小题1分,满分15分)

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。

21. We can never expect ______ bluer sky unless we create ________ less polluted world.

A. a; a          B. a; the            C. the; a            D. the; the

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3、  填表:

弧长l
扇形的面积S
半径R
弧的度数n
 
 
4
150
 
 
8
240

 
10
 

 
 
120

四、     小结

弧长公式与扇形的面积公式。

五、     作业

书本 P 135  习题3.10  1

六、     教学后记

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2、  《练习册》 P 60 

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同步练习册答案