0  356004  356012  356018  356022  356028  356030  356034  356040  356042  356048  356054  356058  356060  356064  356070  356072  356078  356082  356084  356088  356090  356094  356096  356098  356099  356100  356102  356103  356104  356106  356108  356112  356114  356118  356120  356124  356130  356132  356138  356142  356144  356148  356154  356160  356162  356168  356172  356174  356180  356184  356190  356198  447090 

4. 在各项均为正数的数列{}中,为前项和,,则=                                (   )  A.-        B.        C.-       D.

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3.为了得到函数y=sin(2x-的图像,可以将函数y=cos2x的图像      (   )

A.向右平移个单位            B. 向右平移个单位

C. 向左平移个单位           D. 向左平移 个单位

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2. 已知命题p :不等式|x|+|x-1|>m的解集为R,命题q:命题 是减函数,则p是q的                           (   )

A.充分不必要条件             B.必要不充分条件

C.充要条件                D.既不充分也不必要条件

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1.Sin10500的值为                           (  )

A.        B.         C. -       D.

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环境一直是人们普遍关注的话题,也是每位学生喜爱和经常讨论关心的话题。假如你是李华,请根据下表的信息,写一篇英文短文。

注意: 1.词数: 120-150左右;

 2.可适当加入细节,以使行文连贯。

参考词汇 : schoolyard 校园

             Environment

环境
怎样保护、创造良好的环境
社会环境
说得体语言,有礼貌,有爱心,保持清洁,乐于助人,尽力为别人照想。
学校环境
尊敬师长,团结同学,互助互爱,宽以待人,不要随地吐痰,积极创造有利于健康、学习的生活环境。
家庭环境
体谅父母,与父母沟通,交流,做力所能及的事。
就如何保护环境,发表自己的观点……

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此题要求改正所给短文中的错误。对标有题号的每一行做出判断:

无错误,在该行右边横线上画一个勾(√);

如有错误(每行只有一个错误),则按下列情况改正:

此行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。

此行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。

此行错一个词:在错的词下划一横线(__),在该行右边横线上写出改正后的词。

注意:原行没有错的不要改!

I went to the English Camp in London last summer

holiday. One day, my two good friends and I were on duties. 

81. ________

When we finished cleaning classroom, it was about 8:50  82.________

in the evening. Then we prepare to go to students' dorm.  83.________

Inside the building, it was very dark. There was only the 84.________

moon and some small stars in the sky. In that moment,      85 ________                       

we were all afraid. On our way to the dorm, one of my   86. ________             

friends saw something on the ground and picked it up, said   87. ________           

"Look, 100 pounds!" When we got to our dorm, we gave them    88. ________

to the teacher. Money is important, but money is not anything  89. ________          

and cannot buy all what we need in the world.         90. ________

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80.The banana trees has b__________ leaves, as is known to us all.

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79.Life belongs to a person only once, so I hold the view that being healthy is more important than being w___________.

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78.G__________, he began to understand.

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77.One of the best ways for people to keep fit is to d_________ healthy eating habits.

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