问题 解答题
解方程:
x
x+1
-
x+2
x-2
=
8
x2-4
答案

方程两边同乘以最简公分母(x+1)(x+2)(x-2),

得:(x-2)(x+2)x-(x+1)(x+2)2=8(x+1),

5x2+20x+12=0,

解得x1=

2
10
5
-2,x2=-
2
10
5
-2,

经检验x1=

2
10
5
-2,x2=-
2
10
5
-2都是方程的根.

改错题

第Ⅱ卷(共两部分,满分35分)

第四部分:写作(共两节。满分35分)

第一节:短文改错(共10小题;每小题1分,满分10分)

此题要求改正所给短文中的错误。对标有题号的每一行作出判断:如无错误,在该行右边横线上画一个勾(√);如有错误(每行只有—个错误),则按下列情况改正:

该行多一个词: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。

该行缺一个词:在缺词处加—个漏字符号(∧),在该行右边横线上写出该加的词。

该行错一个词: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。   

The first fact I worry is noise pollution.Peple can’t sleep        76.___________

well if there is too much noise.That’s why such many people         77.__________

prefer to live in the countryside rather than living in noisy cities.       78._________

I suggest all the factories and cars not make terrible noise.Although    79._________

they make terrible noise that are not allowed,they should be fined,    80.__________

and we can also produce cars which don’t make terrible noise.        81.___________

Another pollution is rubbish pollution.If nobody makes so much       82.________

rubbish,one day we may live in a world filling with rubbish.         83.__________

Some people throw waste paper about.I suggested rubbish            84.__________

should be put into different kinds of dustbins or papers bags.          85.___________

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