Forests have always been useful and important to man who makes use of them in

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　　Forests have always been useful and important to man who makes use of them in many ways. Every day trees are serving man everywhere. Trees supply man with fruits and building materials in the form of wood. Without trees it would be impossible to build houses, boats, bridges and so on. Furniture such as desks, chairs and beds is made of wood. Trees can stop man from terrible heat. They"re also useful in preventing good and rich top soil from being washed away during heavy rains.
　　If there were no trees, heavy rains would wash away the rich top soil that is so important to plants. The result is that the land will become a desert. There are plenty of desert areas in the world. A long time ago these desert areas used to be very rich areas, but man in the past had no enough knowledge about science of nature, they cut down too many trees in the area where they lived and never planted new ones. By and by the rich top soil was blown and washed away by strong winds and heavy rains. In the end the rich land changed into useless deserts where nothing could grow.
小题1:According to the passage, ______.

A．a long time ago, man didn"t know how to make use of wood

B．trees are not as useful as they were in the past

C．trees were more found in the past than they are today

D．people have always found trees useful

　　小题2:If there were no trees, ______.

A．the land would become better	B．heavy rains would be very clean
C．the rich soil couldn"t be kept	D．there wouldn"t be any plants

　小题3:From the passage, we know that man must ______.

A．do nothing to keep the balance（平衡）of nature

B．take his best to keep the balance of nature

C．try his best to keep the balance of nature

D．do his best to stop the balance of nature

答案

小题1:D
小题2:C
小题3:C

解析

小题1:这是一道细节题。从文中第一句话可知道答案。
小题2:这是一道细节题。从文中第二段内容可知，没有树就会造成水土流失。
小题3:从文中内容可知，人类必须尽最大努力保持生态平衡。

举一反三

Most people have no idea of the hard work and worry that gosintosthe
collecting of those fascinating birds and animals that they pay to see in the
zoo.One of the questions that is always asked of me is __1__ I became an animal
collector in the first __2__ .The answer is that I have always been interested
in animals and zoos.According to my parents, the first word I was able to say
with any __3__ was not the conventional“mamma”or“daddy”，__4__ the word“zoo”，
which I would __5__ over and over again with a shrill __6__ until someone,
insgroupsto __7__ me up, would take me to the zoo.When I __8__ a little older,
we lived in Greece and I had a great __9__ of pets, ranging from owls to
seahorses, and I spent all my spare time __10__ the countryside in search of
fresh specimens to __11__ to my collection of pets.__12__ on I went for a year
to the City Zoo, as a student __13__ , to get experience of the large animals,
such as lions, bears, bison and ostriches,__14__ were not easy to keep at
home.When I left, I __15__ had enough money of my own to be able to __16__ my
first trip and I have been going __17__ ever since then.Though a collector"s job
is not an easy one and is full of __18__ ,it is certainly a job which will
appeal __19__ all those who love animals and __20__ .
1.A.how B.where C.when D.whether
2.A.region B.field C.place D.case
3.A.clarity B.emotion C.sentiment D.affection
4.A.except B.but C.except for D.but for
5.A.recite B.recognize C.read D.repeat
6.A.volume B.noise C.voice D.pitch
7.A.close B.shut C.stop D.comfort
8.A.grew B.was growing C.grow D.grown
9.A.many B.amount C.number D.supply
10.A.living B.cultivating C.reclaiming D.exploring
11.A.increase B.include C.add D.enrich
12.A.later B.further C.then D.subsequently
13.A.attendant B.keeper C.member D.aide
14.A.who B.they C.of which D.which
15.A.luckily B.gladly C.nearly D.successfully
16.A.pay B.provide C.allow D.finance
17.A.normally B.regularly C.usually D.often
18.A.expectations B.sorrows C.excitement D.disappointments
19.A.for B.with C.to D.from
20.A.excursion B.travel C.journey D.Trip

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Indians Refuse Higher Education
On June 17,1744, the officials from Maryland and Virginia held a talk with the Indians of the Six Nations． The Indians were invited to send boys to William and Mary College． In letter the next day they refused the offer as follows:
We know that you have a high opinion of the kind of learning taught in your colleges, and that the costs of living of our young men, while with you, would be very expensive to you． We are certain that you mean to do us good by your suggestion; and we thank you heartily． But you must know that different nations have different ways of looking at things, and you will therefore not be displeased if our ideas of this kind of education happen not to be the same as yours． We have had some experience of it． Several of our young people were formerly brought up at the colleges of the northern provinces:
They were taught all your sciences; but, when they came back to us, they were bad manners, and they knew little of every means of living in the woods．．． they were totally good for nothing．
We are, however, not the less obliged for your kind offer, though we refuse to accept it; and, to show our grateful sense of it, if the gentlemen of Virginia will send us a dozen of their sons, we will take care of their education, teach them in all we know, and make men of them．
59．The passage is about _______．
A．the talk between the Indians and the officials

B．the colleges of the northern provinces
C．the educational values of the Indians
D．the problems of the Americans in the mid-eighteenth century
60．The Indians’ chief purpose in writing the letter seems to be to______．
A．politely refuse a friendly offer
B．express their opinions on equal treatment
C．show their pride
D．describe Indian customs

61．Different from the officials’ view of education, the Indians thought______．
A．young women should also be educated
B．they had different objects of education

C．they taught different branches of science
D．they should teach the sons of the officials first
62．The mood of the letter as a whole is best described as ______．
A．angry B．polite C．pleasant D．inquiring

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DNA ( Deoxyribonucleic acid ) is one of the most important discoveries in science. DNA is the plan for the human being , as a blueprint is the plan for building. DNA makes a person look the way he does. A person"s DNA. comes from a mixing of his parents" DNA. That"s why a child looks like his parents. But, besides controlling things such as height and hair color, DNA can also give people diseases , Scientists are now studying DNA to cure diseases.
In the seventies, scientists developed a process called recombinant (重新组合) or RDNA. Although it sounds difficult to understand, RDNA simply means taking DNA from one animal or plant and putting it into another. By doing so, scientists can create new beings. In so doing, scientists can better understand DNA, especially what parts of DNA do . After they understand DNA, scientists can begin to cure diseases. Often, the new being created will itself be the cure.

Besides curing diseases, RDNA research can also do other things. For example, scientists in Japan have already created “super-trees”. Trees help humans, because they take CO₂, which poisons humans, from the air and turns it into oxygen, which lets humans breathe. “Super-trees” do this too, but do if much faster. As things such as cars and factories have already put much CO₂ in the area, “super-trees” are badly needed.
Unfortunately, there is serious danger in RDNA research. Scientists want to create animals to cure old diseases, but these new animals may also create new diseases. It will be a serious problem if the animals escape from the science laboratory and into nature. As these animals are not natural, they may let loose many new powerful diseases.
As a result, RDNA research will create many solutions (解决方案), but it will also create many problems.
67. From the passage, we can know that a boy looks like his parents because________
A. he is son of his parents
B. his parents" DNA decides his appearance
C. he has received DNA from his father or his mother
D. scientists have put some of his parents" DNA into him
68. What does the underlined expression “let loose” probably mean?
A. let... go free B. get rid of C. absorb D. survive
69. What is the best title for the passage?
A. The DNA Research in Japan
B. A New Way of DNA Research in Japan
C. The Causes and Effects of DNA Research
D. The Advantages And Disadvantages of RDNA
70. The following statements are true about RDNA research EXCEPT_____.
A. the research has been stopped because the created animals carry virus
B. “super-trees” might be widely planted around the world
C. scientists have not completely understood DNA
D. RDNA research will benefit human beings a lot

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A newly trained teacher named Mary went to teach at a Navajo Indian reservation. Every day, she would ask five of the young Navajo students to __1__ the chalkboard and complete a simple math problem from   2  homework.
They would stand there, silently, 3  to complete the task. Mary couldn’t figure it out.   4  she had studied in her educational curriculum helped, and she   5  hadn’t seen anything like it in her student-teaching days back in Phoenix.
What am I doing wrong? Could I have chosen five students who can’t do the 6 ? Mary would wonder. No, 7 couldn’t be that. Finally she   8  the students what was wrong. And in their answers, she learned a   9  lesson from her young   10  pupils about self-image and a(n)   11  of self-worth.
It seemed that the students 12 each other’s individuality and knew that 13 of them were capable of doing the problems.   14 at their early age, they understood the senselessness of the win-lose approach in the classroom. They believed no one would 15 if any students were shown up or embarrassed at the 16 . So they   17  to compete with each other in public.
Once she understood, Mary changed the system   18  she could check each child’s math problem individually, but not at any child’s expense 19 his classmates. They all wanted to learn, 20 not at someone else’s expense.
1. A. go to                     B. come to               C. get close to             D. bring
2. A. his                        B. their                   C. his own                  D. her
3. A. happy                    B. willingly             C. readily                   D. unwilling
4. A. Anything               B. Nothing              C. Everything             D. Neither
5. A. almost                   B. certainly              C. hardly                   D. never
6. A. question                 B. chalkboard          C. problem                 D. homework
7. A. they                      B. it                        C. everything              D. each
8. A. asked                     B. questioned           C. told                       D. understood
9. A. outstanding            B. surprising            C. annoying                D. frightening
10. A. sunburned               B. tender                 C. Indian                    D. naughty
11. A. sense                      B. image                 C. way                       D. aspect
12. A. had                        B. ignored               C. respected                D. cared
13. A. none                      B. no one                C. each                       D. not all
14. A. Especially               B. Even though        C. Even so                  D. Even
15. A. lose                        B. win                     C. achieve                  D. answer
16. A. time                       B. situation              C. chalkboard             D. condition
17. A. refused                   B. rejected               C. tried                      D. promised
18. A. if                        B. so that                 C. unless                    D. in case
19. A. in favour of           B. of                       C. by means of            D. in front of
20. A. and                        B. but                     C. so                         D. or

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US president Barack Obama told students that it takes hard work in school to prepare for a rewarding career in his “back to school” speech,   36  last Tuesday in Virginia, US. Here is excerpt （节选）from his speech:
I know that sometimes, you get the 37    that you can be rich and successful without any hard work – 38   your ticket to success is through rapping or basketball or being a reality TV star, when chances are, you’re not going to be any of those things. But the truth is, being successful is   39   .You won’t love every subject you study. Not every homework assignment will seem completely important to your life right this minute. And you may not succeed at    40     the first time you try.
That’s OK. Some of the most successful people in the world are the ones who’ve had the most   41  .JK Rowling’s first Harry Potter book was   42  12 times before it was finally published. Michael Jordan was    43    his high school basketball team, and he lost hundreds of games and missed thousands of shots during his career. But he once said. “I have failed over and over and over again in my life. And that is why I succeed.”
These people succeeded because they understand that you can’t let your failures 44   you. No one’s    45  being good at things; you become good at things through hard work.
Don’t be afraid to ask questions. Don’t be afraid to ask for help when you need it. I do that every day. Asking for help isn’t a sign of weakness; it’s a sign of    46    . It shows you have the courage to admit when you don’t know something, and to learn something new.
And even when you’re 47     , even when you’re discouraged, and when you feel like other people have given up on yourself, you won’t give up on yourself. Because when you give up on yourself, you give up on your country.
36. A. addressed                  B. claimed                   C. delivered                  D. announced
37.A. feelings               B. definition           C. concept                      D. sense
38. A. that                           B. which                       C. what                          D. whatever
39. A. inaccessible                    B. hard                        C. rough                          D. unavailable
40.A, anything                          B. everything                 C. nothing                        D. something
41. A. effort                B. attempts                   C. failures                        D. successes
42. A. denied             B. turned away        C. declined           D. rejected
43. A. cut from                        B. cut off                       C. cut down           D. cut in
44. A. confirm                          B. define                      C. identify                        D. prove
45. A. brought up             B. raised                        C. fed                           D. born
46. A. strength             B. courage                       C. weakness                      D. perseverance
47. A. struggling                 B. fighting             C. trying                          D. succeeding

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