题目
题型：期末题难度：来源：
aspirin had a reduced death rate ,especially from heart disease.
The research,based on data from a major trial that has tracked almost 80,000 women since 1976,
found that women who reported using aspirin on a regular basis had a 25 percent lower risk of death
from any cause than women who didn"t take the drug.
The risk of death from cardiovascular (心血管的) disease was 38 percent lower for aspirin users,
and there was also a 12 percent reduction in cancer deaths that took effect after a decade of aspirin
use, the researchers found in their report based on the Nurses" Health Study.
However,an accompanying editorial in the journal cautioned that the results were open to debate
and far from definitive.
The dissenting (持异议的) editorial was based on results of an earlier trial by the Women"s Health
Study, which followed almost 40,000 women for 11 years and found no reduction in overall deaths.
Therefore,the new findings" cannot overcome the accumulated evidence that aspirin is not particularly
effective for the primary prevention of death from cardiovascular disease in women. "
" This is a complicated issue , " said Dr. Andrew T. Chan, leading author of the new report. "We
understand that aspirin has potential health benefits,but who would aspirin therapy(疗法) be appropriate
for? There are areas of disagreements that need further study before that question can be answered" ,
Chan said. But there is information from the two large studies and other trials that can help guide women
and their physicians,he said. And anyone who is thinking about daily aspirin should really talk with doctors about the benefits and risks.
B. cancer
C. lose of memory
D. aspirin side effects
B. Which of the two researches is really reliable?
C. Who will do the further study in this area?
D. Who are proper for this treatment?
B. The earlier one.
C. Neither.
D. Both.
B. start immediately with the help of their physicians
C. concentrate on the benefits instead of the risks
D. turn to their physicians for only the benefit it has
B. To introduce two controversial researches.
C. To draw a final conclusion on the debate.
D. To help women live longer and healthier.
答案
核心考点
试题【 According to decades-long research, women who took low to moderate (节制) dai】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
full super-conducting experimental nuclear fusion (核聚变) device known as"artificial sun"in the world,
which will produce energy like the sun.
It is reported that this device consists of five layers of components(成分)from inside to outside and the
circulating magnet container in the innermost layer looks like a giant" swim ring". In experimental tests,the
temperature of inner" swim ring" will reach as high as 100 million degrees Celsius. Therefore,such
component is a significant part to stimulate solar fusion reactions.
Wan Yuanxi,who is in charge of the project called Experimental Advanced Super-conducting
Tokamak( EAST) ,an important scientific project under China"s ninth five-ycar plan,explained the reason
why the sun always gives off light and why the energy it produces will not decrease. Under high pressure
and high temperature, fusion reactions will take place from inside to outside of the sun.
Such fusion reactions will give rise to a great deal of energy to enable the sun to continuously emit light
and heat. However,fusion reactions on the sun are uncontrollable,just like an H-bomb explosion seen on
the earth. A huge amount of energy will be produced in a minute,which may be destructive. In order to
make use of such energy,a transformation from the process of energy production to a stable,sustainable
and controllable process is needed. EAST is serving to initiate such a transformation. Under magnetic
force,the op-
eration of hydrogen plasma isotope (同位素) will be restrained in the" swim ring" and high density
collision will happen, namely the fusion reactions. The hydrogen isotope got from one liter of seawater
can produce energy equal to 300 liters of gasoline through complete fusion reactions.
Wan said that we can get endless clean energy by producing such a device for accomplishing fusion
reactions,which is equal to one or a few small suns made by human beings themselves so that they can
ceaselessly obtain energy from nuclear fusions.
B. The Sun and the" Artificial Sun".
C. How to Produce the" Artificial Sun".
D. China Built the World"s First"Artificial Sun".
B. Man-made.
C. Actual.
D. Ancient.
B. EAST is an important scientific project under China"s ninth five-year plan.
C. Such fusion reactions in the" artificial sun" will give us limited energy.
D. The hydrogen isotope got from one liter of seawater can produce energy equal
to 300 liters of gasoline through complete fusion reactions.
B. To get more light.
C. To have the sun shining for us in 24 hours
D. To study the inside of the real sun.
Call on a Ladybug
There are lots of insects that farmers hate. But there also are some they like. These protect crops
against damage from other insects. A good example is the lady beetle,also known as the ladybug
Lady beetles are a natural control for aphids (蚜虫). Lady beetles are red,orange or black. They
often have black spots,though some have light colored spots. Different kinds of lady beetles have
different numbers of spots. There are lady beetles with four,five, seven and fourteen spots.
Many of the well-known kinds of lady beetles come from Asia or Europe. They are now common
throughout the United States.
American scientists imported one kind of lady beetle,the multicolored Asian lady beetle,as early as
1916. They released them as an attempt to control some kinds of insects. Over the years,the beetle has
become established,possibly helped by some that arrived with imported plants on ships.
Experts say over 450 kinds of lady beetles are found in North America. Some are native to the area. Others have been brought from other places. Almost all are helpful to farmers.
The Asian lady beetles now in the United States probably came from Japan. The Asian lady beetle
eats aphids that damage crops like soybeans,fruits and berries.
In the southern United States,Asian lady beetles have reduced the need for farmers to use pest-killing
poisons on pecan trees. This popular tree nut suffers from aphids and other pests that the
beetles eat.
But some people say the Asian lady beetle has itself become a pest. They worry that the beetles may
eat their late-autumn fruit crops.
Experts say Asian lady beetles may appear in large numbers in some years. But they say the insects
are too helpful to be considered pests.
B. Most of them are red,orange and black.
C. They each have the same number of spots on them.
D. The farms like them.
B. hundreds of years
C. half a century
D. a century
B. Only some imported ladybugs are helpful to the local plants.
C. Soybeans,fruits and berries are favorites of Aphids.
D. Pecan trees are common in the south of America.
B. more pests than helpful insects.
C. helpful as well as destructive.
D. are more destructive than helpful.
(啮齿动物) in its network of tunnels and burrows (穴). But it was not crowded in this town. There was
sunlight and fresh air for all. There was enough grass to furnish food.
Scientists have leamed that the prairie dogs found in many parts of the West can live together in huge
numbers without being crowded. Scientists know that each prairie dog town is divided into separate
territories. Each section belongs to a family group,or clan.
The animals cooperate in many ways. One of the prairie dogs who sense danger will wam the others. All the animals take cover. Still,the animals stay within their own sections of the town and eat only the
plants that grow there. Young prairie dogs are taught the clan boundaries,and they later teach the
boundaries to their own young.
What happens when one clan becomes too large for the food in its territory? Is there any war with
the next-door clan to win more land? Not at all. The territory is turned over to the younger members
of the clan. The older animals move out to the edge of the town. They stake out a new territory and dig
a new network of tunnels. Before long, another clan will form a new territory beyond them. In this way,
a prairie dog town grows and grows,but the number of animals in each section stays about the same.
B. provide
C. cook
D. furniture
B. They live in a crowded and cooperative family.
C. They live in a big but united family.
D. They live in a large family without cooperation.
B. young prairie dogs must find a new territory
C. young prairie dogs should fight to gain more land
D. young prairie dogs shouldn"t get food from other territories
the one that___．
B. the older animals move out of the town when they become too large for the food
C. prairie dogs build the network of tunnels and burrows to form a territory in the town
D. there was sunlight,fresh air and enough grass for all
t seems that 1 can survive without one. Mobile phones are a great 2 to stay connected with friends and family. 3 , it is important to remember that there are
certain times 4 you should not be using your phone, especially as a student, during school.
5 you are in class, you should not be sending your friends tex
t messages 6 taking phone calls. Your classmates and teacher should not have to deal with this rude 7 . Aren"t you at school to learn?
In the United States, students would never be allowed to 8 their mobile phones during class. If you
were to send or 9 a text message you would probably be kicked 10 class. It is very disturbing to hear a lot of tones and ringing during 11 . There are many more rules for mobile phone use in America and it is
to 12 respect for those around you.
As a teacher in China, I have to 13 students using mobile phones every day. I have told my class to
14 their phones, but many students do not listen. The 15 to be connected all the time seems to be
more 16 than the desire to learn.
It"s easy to understand 17 it is so tempting(诱惑人的) to have your phone on during class. It seems
so easy just to send a short text message; it"s not hurting anyone, is it? But you may actually be hurting
18 when you do this. Your teacher knows when you use your phone and may give you a 19 grade.
Sending a text message also takes your attention away from what"s going on in class, you may 20
something important.
| ( )1. A. one ( )2. A. way ( )3. A. But ( )4. A. which ( )5. A. After ( )6. A. or ( )7. A. act ( )8. A. have ( )9. A. receive ( )10. A. of ( )11. A. school ( )12. A. ask ( )13. A. do ( )14. A. turn on ( )15. A. desire ( )16. A. possible ( )17. A. why ( )18. A. himself ( )29. A. lower | B. somebody B. road B. However B. that B. Before B. and B. action B. take B. accept B. off B. class B. suggest B. deal B. turn down B. wish B. important B. what B. herself B. higher | C. someone C. method C. So C. when C. Because C. as well as C. habit C. use C. make C. out C. office C. show C. do with C. turn off C. hope C. necessary C. that C. ourselves C. better | D. no one D. path D. Therefore D. where D. If D. instead of D. behavior D. send D. get D. out of D. home D. answer D. deal with D. turn in D. expect D. interesting D. whether D. yourself D. upper |
| 阅读理解。 | |||
| Reading is very important to help you learn English. To learn as much as you can from reading, you need to read different kinds of English. This book provides not only different kinds of English but also a good way to check your reading ability. There are four parts in the book: Part 1 is Messages: In this part somebody wants to wad information in writing to somebody else. There is a test on timetables and a test on text messages. Part 2 is People: In this part all the tests are about people. For example, there is an informal letter between friends. There is formal ( 正式的) English in biography ( 传记). There is a job application as a model to help with your  writing, as welt as testing your reading.Part 3 is Places: In this part, too many different kinds of English are shown, some informal and some formal. There is the informal English of a holiday postcard. There is also the formal English in a letter of complaint. Part 4 is Things: You will find some descriptive writing in this part. There are descriptions of clothes and of a computer. You can do these tests in any order you like, or you can do alt the tests with a formal or informal text. I enjoyed writing this book and I hope you enjoy using it, | |||
| 1. We can find the introduction to a product in ______, | |||
| A. Part 1 B. Part 2 C. Part 3 D. Part 4 | |||
| 2. Which of the following is most probably written in informal English? | |||
| A. A letter of complaint. B. A computer handbook. C. A letter to a friend. D. A story of a president. | |||
| 3. The passage is most probably written for _____. | |||
| A. test designers B. students C. test-takers D. teachers | |||
| 4. What is the best title of the book? | |||
| A. Test Your Reading B. Help with Your Writing C. Learn Different Kinds a/English D. Practise English in Different Ways |