假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文。文中共有10处语言错误，每句中最多有两处，每处错误仅涉及一个单词的增加，删除或修改。
增加： 在缺词处加一个漏字符号（^）,并在其下面写出该加的词。
删除：把多余的词用斜线（\）划
掉。
修改： 在错的词下划一横线，并在该词下面写出修改后的词。
The world is not only hungry, but also thirst． This may sounds strange, since nearly seventy percent of the earth's surface is covered with water． But about ninety percent of this is sea water． Man and most of the animals can only drink and use the remained ten percent of water --- fresh water． The need for water is increased day by day． Only when steps are taken to deal with this problem immediate can we avoid a severe worldwide water shortage later on． One of the first steps are to develop ways to reuse them． Experiments have already carried out in this field． The used water has been pumped to a water purifying plant that it can be separated from waste matters and treated with chemicals so that it can be reused again．
第Ⅱ卷（非选择题共35分）
第四部分：写作（共两节，满分35分）
第一节短文改错（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做出判断：如无错误，在该行右边横线上画一个勾（√）;如有错误（每行只有一个错误）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。
该行少一个词：在缺词处加一个漏字符号（^），并在右边横线上写出所加的词。
该行错一个词：在错词下划一横线，在该行右边横线上写出改正的词。
注意：原行没错的不要改。
I visited my aunt in the countryside near the city last week．
I was surprised to see that great changes had been taken place 76________
in the countryside．Take my aunt’s family for example．We 77_______
supply precious trees and flowers to the stores in the city and 78________
have over ten workers working for themselves．Their family’s 79_______
income reached as much 100 000 yuan last year．Not only 80______
did they have a house, a car and computers, they can also afford 81______
a trip abroad every year．When asking what else they needed 82______
most, they said that they wanted to learn a few English so that 83______
they could do business with foreigners directly．To their delighted, 84______
my cousin an use that he has learned from university to help 85_______
them with overseas trade．
第二卷写作
第四题：短文改错。（按格式去改，每题1分，共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（每行只有一个错误），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：在缺词处加一个漏字符号（∧）；在该行右边横线上写出该加的词；该行错一个词，在错的词下划一个横线；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。
Dear Lily,
Thanks very much on inviting me to your birthday 76_____
party on Sunday. I’d like very much go but 77_____
I’ll have an examination in Monday morning. 78_____
It is very important but I can’t afford to fail 79_____
it. I’ll spend all the whole weekend reading 80_____
and prepare for it. So I’m really sorry that 81_____
I won’t be able to come this time. I hope you 82_____
can understand me. I’ll take this chance to wish 83_____
you wonderful time on your birthday. Happy 84_____
birthday, Lily, and many return of the day. 85_____
第Ⅱ卷
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钩（√）；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 am a high school student. A few days before, 76. ________
one of my very good friend told me that he was going 77. ________
to stop the school. He said that he wanted to start his 78. ________
own business. I tried my best to get him change his mind, 79. ________
but I failed.
I know it is difficult of him to change his mind. 80. ________
He is not doing so good in his studies, yet I want to 81. ________
insist that he give it a try. The process is more 82. ________
important than the results. Now there are only 60 days leaving 83. ________
before that test. I am not sure that his decision is right 84. ________
or wrong. I needed your advice.85. ________
第二节短文改错（共10小题；每小题1.5分，满分15分）
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：
如无错误，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。
Good health is the most valuable possession a person can have, 76. _______
so one can not regard good health as certain to happen. It’s 77. ________
important to remember that body needs proper care in order 78. ________
to be healthy. There are three things that a person can do stay 79. ________
in good shape. Firstly, eat the right foods is good for health. 80. ________
Vegetables and fruits are specially important. Enough sleep 81. ________
is also important. Finally, get plenty of exercises. Sports are 82. ________
not only good for one’s body, but it can also help build 83. ________
friendship with others p
eople. If everyone were to do the three, 84. ________
the world would be a happier and healthy place. 85. ________
第二节：短文改错(共10小题；每小题1.5分，满分15分)
注意：原行没有错的不要改。
A helicopter is sometime more useful than a big plane. When 11＿＿＿＿＿＿
it takes off, it goes straight on. When it lands, it comes12____________
straight down. It needs not only a small place for both taking13 ___________
off and landing. When a tall building is on fire, we can14____________
see a helicopter to come down to rescue the people on the top 15 ___________
of them. Helicopters make many kinds of work easy. They are 16____________
used to making maps, flying over the ground and taking pictures17____________
from the air. To rescue people whom are very 18____________
sick or in danger, helicopters are send to some faraway19____________
areas. The helicopter takes place of a car or a train20____________
in some areas.