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1、  熟练利用导数求解多项式函数的单调区间、极值、最值等;

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  现在有很多同学迷恋上网,假设你们班在下周班会上讨论有关上网的问题。请你根据提示写一篇发言稿。

好处:学习使用电脑,查阅资料,了解更多的知识。

弊端:花许多时间玩游戏,在网上聊天,耽误时间,使学习越来越差。

建议:学习时,不上网;假期可以适当上网,但不能整天沉迷其中

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A:请根据对话内容选择正确的单词,并将其适当形式填入横线上。(每小题1分,共5分)

work  much  take  prefer  look

A:Saleswoman    B:Mrs Green

A:Good afternoon ! Can I help you ?

B:Yes , please . I’m 61       for a mobile phone .

A:We have many popular kinds , like Motorola , Nokia and so on .

B:I 62        the things made in China .Do you have a TCL ?

A:Yes , TCL is also popular . What about this one ?It’s the newest .

B:Well , I don’t want the newest . I’d like a practical(实用的) one .

A:This one looks nice and 63        well .

B:How 64        is it ?

A:1,350 yuan .

B:That’s a bit expensive . But I’ll 65       it .

B:根据对话内容,从方框中选出五个合适的句子补全对话,并将其标号填入题后括号内。(每小题1分,共5分)

  Jenny:Mum, I'm really stressed (紧张的).

Mother: 66(   )

Jenny:We are going to havea big test tomorrow.  67(   )

Mother:   68(   ) You' ve been working hard recently.

Jenny:But I am still not sure of myself.

Mother: 69(   )  That' 11 help you relax.

Jenny:Good idea! Maybe I should go to bed early tonight.

Mother:  70(   )  A good night's sleep will refresh you for tomorrow.

A.Take it easy.
B.Why not just listen to some music?
C.That could be better.
D. Don’t worry. I’ll do it for you.
E.What’s the matter?
F.I’m not ready yet.
 
 
 

66.________. 67. ________ 68. ________ 69._________ 70. ________

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60.(    ) A. Rob      B. the headmaster   C. he himself   D. the teacher

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59.(    ) A. no one     B. someone      C. anyone    D. everyone

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58.(    ) A. heart     B. job        C. mind     D. place

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