完形填空：阅读下面短文，掌握其大意，然后从各题所给的四个选项中选出一个最佳答案。（共20小题，每小题1.5分）
In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be　46　.                    Today things are　 47　 , the world has become too　 48　 . We are using up our natural resources too quickly, and at the same time we are　 49　 our environment with dangerous chemicals. If we continue to do this, human life on the earth　 50　 survive.
　　Everyone　51　 today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing　 52 , more and more fish are caught. We know that if too many trees are cut down, 　53　 will disappear and nothing will grow on the land. Yet, we　 54　 to use bigger and more powerful machines to　55　 more and more trees.
　　We realize that if rivers are polluted with waste products from factories, we will die.　 56　 , in most countries wastes are　 57　put into rivers or into the sea, and there are　 58　 laws to stop this. We know, too, that if the　 59　of the world continues to rise at the present rate, in a few years there will not be enough 60　. What can we do to solve these problems ?
　  If  we eat more vegetables and less　 61　 , there will be more food available for everyone. Land that is used to grow crops　 62　 five times more people than land where animals are kept. Our natural resources will　 63　 longer if we learn to recycle them. The world population will not rise so quickly if people use modern methods of birth 64　 .
　　Finally, if we educate people to think about the problems, we shall have a better and clearer 65　in the future.

Polly Townsend
PART THREE  READING COMPREHENSION
Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are 4 choices marked A,B,C and D. Choose the one that fits best according to the information given in the passage. (20%)
A
“Mummy, I don’t know what to play with. ” Steve interrupts his mother, who is talking to a friend, for the fourth time. “You’ve got a room full of toys!” his mother says, impatiently, In fact it is the jumble of toys which is to blame for four -year-old Steve's lack of interest in his dolls, cars and stuffed （packed）animals. Each morning he tips out three washing baskets of toys all over his floor, listlessly pulls out something and shortly after is standing at his mother’s desk or following her into the kitchen saying: “Mummy, I am bored.”
A family therapist（治疗专家）explains why children lose interest when they have a whole “toy shop” at home : “According to their brain development, little children are not in a position to judge the quality of a variety of things at once. There is always just one favorite toy for the moment. All the rest is left lying about.” What can parents do to stop their children from being oversupplied with toys? Under no conditions simply make something disappear without the child’s knowledge. If he/she takes no more notice of a toy, a parent can ask if it can be stored or given away. Be warned though the child will help. Lyn is the mother of four-year-old Jessie, and holds the toys and books that are the current（at present）favorites. When it seems to her that her daughter is tired from a cupboard in another room. The box of “old” toys goes into the cupboard. When her child says she is “bored”, they also get something from her cupboard—it may be something she has had for some time but because she hasn’t seen it for a while it is almost like a new toy.
　　Some favorite toys stay out all the time, and there is collection of dolls which sits in the comer, but in this way Lyn has found that she has fewer toys to put away at the end of the day and her daughter always has something “fresh” to play with.
66. Steve interrupted his mother several times because________.
　　A. he felt uninterested in his toys       　      B. he disliked his mother’s guest
　　C. he didn't have enough toys to play with　       D. he hoped his mother would play with him
67. According to the therapist, children often complain that they have nothing, to play with because________.
　　A. they can’t play alone for a long time
　　B. they are too young to play with so many toys
　　C. they are too lazy to pick out their favorites
　　D. they lack the ability to value too many things at a time
68. Which of the following can be used in place of the underlined word “jumble ”？
　　A. Simple choice.                   　      B. Mixture in disorder.
　　C. Ordinary appearance.　                   D. Same shape.
69. Which is the advice given to parents in the text?________.
　　A. Buy fewer toys for their children  　     
B. Form good habits for their children
　　C. Spare some time to play with their children   
D.Put some toys away without telling their children

第二节（共5小题；每小题2分，满分10分）

　　根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

　　In 1990 a report was published about what the earth might be like 20 years from then on. 71 According to the report,the picture of the earth in the year 2010 is not a pleasant one. 72 The population could be as large as 6300 million,almost 2150 million more than in 1985.More people would move into cities ,especially cities in developing countries.Cities like Cairo and Jakarta probably would each have 15 million by then.

　　 73 Farmers will grow 90% more food than they did in 1985,but most of the increase would be in countries that already produce enough food for their people. 74 Poor farming ways are destroying large areas of crop land,changing farms into deserts.More farmland is lost as cities become larger and more houses are built.Air pollution will get worse as industrial countries burn more coal and oil.Many of the world's forests could disappear as more and more trees are cut down.Energy will continue to be a serious problem. 75 They only workde out the situation that exists today.By changing the situation,by settling the problems,the picture can be changed.There is still time for the nations of the world to work out a plan of action.But they warned that waiting too long to make de cisions would greatly reduce the chances of success.

　　E.Experts believe enough food will be produced in developing countries very soon.

　　F.The experts say their picture of the earth for the year 2010 may be wrong.

G.Little increase is expected in South Asia,Africa and the Middle East.

“I sometimes get up at three or four in the morning and I surf the net.”

　 “I often check my e?mail forty times a day.”

　 “I often spend more than three hours during one time on the net.”

　 “I spend more time in chat rooms than with my real?life friends.”

　 Do you know any people like these? They are part of a new addiction called Internet addiction.Internet addicts spend at least thirty to forty hours online every week.The use of the Internet can be an addiction like drug use.People lose control of the time they spend on the Internet.

　 For example，one college student was missing for several days.His friends were worried，and they called the police.The police found the student in the computer lab: he was surfing the net for several days straight.

　 Studies show that about 6% to 10% of Internet users become addicted.And people worry about the teens because the Internet is changing the playing field for some of them.They spend more time in cyberspace than in the real world of friends and family.

　 Is “surfing the net” a hobby or an addiction for you? You may have a problem if you have these symptoms：

　 ?You do not go to important family activities or you do not do school work because you like to spend hours on the Internet.

　 ?You can’t wait for your next online time.

　 ?You plan to spend a short time online，but then you spend several hours.

　 ?You go out with your friends less and less.

1.What does the beginning of the passage tell us?

　 A.How to become an Internet addict.

　 B.What an Internet addict usually does.

　 C.Where to find an Internet addict.

　 D.Why to write this passage.

2.How does the writer describe the addicts’ use of Internet?

　 A.It is something like keeping drugs.

　 B.It is a way of producing drugs.

　 C.It is like taking drugs.

　 D.It is terrible to imagine.

3.Why do people worry about the teens?

　 A.Because the teens are wasting too much money.

　 B.Because they used to work on the Internet.

　 C.Because the playing field of the teens will disappear.

　 D.Because more and more of the teens will become addicted to the Internet.

4.The example in the passage shows that 　　　　.

　 A.Internet problems are more serious among college students

　 B.Internet addicts usually stay in the computer lab without sleep

　 C.some of the Internet users have already been seriously addicted

　 D.the police often help to find those Internet addicts

5.What is the writer trying to tell us at the end of the passage?

　 A.Don’t be addicted to the Internet.

　 B.Go to family activities more often.

　 C.Do things as you have planned.

　 D.Stay with your parents as often as possible.