 | According to the US government, wind farms off the
Pacific coast could produce 900 gig watts of electricity
every year. Unfortunately, the water there is far too deep
for even the tallest windmills (see picture) to touch bottom.
An experiment under way off the coast of Norway, however,
could help put them anywhere. | | 完形填空。 | There are times when people are so tired that they fall asleep almost anywhere. We can see there is a lot
of sleeping on the bus or train on the 1 home from work in the evenings. A man will be 2 the newspaper,
and seconds later it 3 as if he is trying to 4 it. Or he will fall asleep on the shoulder of the stranger 5
next to him. 6 place where unplanned short sleep 7 is in the lecture hall where a student will start snoring
(打鼾) so 8 that the professor has to ask another student to 9 the sleeper awake. A more embarrassing
(尴尬) situation occurs when a student starts falling into sleep and the 10 of the head pushes the arm off the
11 , and the movement carries the 12 of the body along. The student wakes up on the floor with no 13 of
getting there. The worst time to fall asleep is when 14 . Police reports are full of 15 that occur when people
fall into sleep and go 16 the road. If the drivers are 17 , they are not seriously hurt. One woman"s car, 18 ,
went into the river. She woke up in four feet of 19 and thought it was raining. When people are really 20 ,
nothing will stop them from falling asleep-no matter where they are. | ( )1. A. way
( )2. A. buying
( )3. A. acts
( )4. A. open
( )5. A. lying
( )6. A. Next
( )7. A. goes on
( )8. A. bravely
( )9. A. leave
( )10. A. size
( )11. A. cushion
( )12. A. action
( )13. A. memory
( )14. A. thinking
( )15. A. changes
( )16. A. up
( )17. A. lucky
( )18. A. in time
( )19. A. dust
( )20. A. tired | B. track
B. folding
B. shows
B. eat
B. waiting
B. Every
B. ends up
B. happily
B. shake
B. shape
B. desk
B. position
B. reason
B. working
B. events
B. off
B. awake
B. at first
B. water
B. drunk | C. path
C. delivering
C. appears
C. find
C. talking
C. Another
C. lasts
C. loudly
C. keep
C. weight
C. shoulder
C. rest
C. question
C. walking
C. ideas
C. along
C. calm
C. as usual
C. grass
C. lonely | D. road
D. reading
D. sounds
D. finish
D. sitting
D. One
D. returns
D. carelessly
D. watch
D. strength
D. book
D. side
D. purpos
D. driving
D. accidents
D. down
D. strong
D. for example
D. bush
D. lazy | | 阅读理解。 | You may be surprised to learn that one of the best steps you can take to protect your health is to step outside
and spend some time in the grass, dirt and water.
Our ancestors enjoyed the healing power of nature, and now scientists are starting to catch up. According
to research in recent years, just having a view of nature has been shown to improve hospital patients" recovery
and reduce illness rates among office workers. Also, exposure (曝露) to wildlife, horseback riding, hiking,
camping and farms can be helpful for a variety of health conditions in adults and children.
Much of this type of research is focusing on children, and in fact an entire movement has quickly developed
to connect kids with the healing power of nature.
Obesity (肥胖). Rates of childhood obesity have grown sharply in recent years, and this is partly because of
reduced outdoor activity time. Increasing the time students spend learning about nature, both in and outside the
classroom, would help solve this problem. Such lessons are often more attractive for students and often lead
them to become more active outside.
Attention deficit hyperactivity disorder (ADHD) (注意力缺失症). Exposure to ordinary natural settings (环
境) in the course of common after-school and weekend activities may be effective in reducing attention deficit
symptoms in children. Participation in green activities-such as nature walks-helped ADHD patients from a wide
range of backgrounds to stay focused and complete tasks.
Stress. Access to nature, even houseplants, can help children cope with stress.
Depression and seasonal emotional disorder. Major depression requires medical treatment, but physical
activity, especially outdoors, can help ease symptoms. For your average case of winter blues, experts suggest
spending time outside every day and, if possible, taking the family to a sunny vacation spot in mid-winter.
Experts emphasize that you needn"t go to wilderness preserves to enjoy nature"s benefits-simply walking in
a city park or growing in a rooftop garden can make a difference. | | 1. It can be inferred from the first two paragraphs that _____. | A. ancient people were not familiar with the healing power of nature
B. modern people are not familiar with the healing power of nature
C. the healing power of nature works better on children
D. the healing power of nature works better on office workers | | 2. According to Para 4, lessons about nature _____. | A. should engage parents in them
B. should take place outdoors
C. are used widely at schools
D. are liked by students | | 3. Exposure to green areas in neighborhoods can _____. | A. improve children"s skills at learning
B. help reduce ADHD symptoms
C. treat major depression
D. cure winter blues | | 4. What can be inferred from the last paragraph? | A. You can only enjoy nature"s benefits in the wilderness.
B. A common natural setting is beneficial to your health.
C. A city park and a rooftop garden have different benefits.
D. Too many people in the wilderness will reduce the benefits of nature. | | 阅读理解。 | Nuclear energy is a controversial topic. There has been widespread public debate over it. It seems that the
nuclear energy is either a gigantic disaster waiting to happen or the all-powerful way of the future.
It is often believed that unclear energy is something we cannot do without. We live in a consumer society
with a huge demand for commercial products of all kinds. Besides, an increase in industrial production is
considered to be one solution to the problem of mass unemployment. Such an increase assumes an abundant
and cheap energy supply. Many people believe nuclear energy provides an endless and economical source of
power and that it is therefore fundamental for an industrially developing society. Among other advantages is
that unclear power, except for accidents, is clean. A further advantage is that a nuclear power station can be
run and maintained by relatively few technical and administrative staff. The nuclear reactor represents a great
step in our scientific evolution and, whatever the anti-nuclear group says, it is wrong to expect a return to
more primitive sources of fuel.
However, opponents (people who oppose something)of nuclear energy point out that nuclear power stations
bring a direct danger not only to the environment but also to civil liberties. Environmentalists argue in the long
run nuclear energy wastes valuable resources and disturbs the ecology to an extent which could bring about
the destruction of the human race. Furthermore, it is questionable whether unclear power is a cheap source
of energy when everything is considered. There have, for example, been very costly accidents in America, in
Britain and, of course, in Russia. The possibility of increases in the cost of uranium (铀) in addition to the cost
of greater safety provisions could price nuclear power out of the market.
In spite of the case against nuclear energy above, nuclear energy programmes are expanding, which
assumes a continual growth in industrial production and consumer demands. However, it is doubtful whether
this growth will or can continue. Having weighed up the arguments in both sides, it seems that there are good
economic and ecological reasons for sources of energy other than nuclear power. | | 1. What"s the writer"s attitude toward nuclear energy? | A. Objective.
B. Negative.
C. Tolerant.
D. Appreciative. | | 2. According to the opponents, which of the following is true of nuclear energy? | A. Primitive.
B. Endless.
C. Cheap.
D. Unsafe. | | 3. Some people believe that nuclear energy is the most important because _____. | A. nuclear power stations can be run and maintained by relatively few staff
B. it can meet the growing demand of an industrially developing society
C. it represents a huge step forward in our scientific evolution
D. it provides a perfect way out to increase employment | | 4. Which of the following shows the structure of the passage? | A.  B. 
C.  D.  | | 阅读理解。 | Traditional surgical procedures require surgeons to make large incisions (伤口) in a patient"s body in order
to gain access to the organs inside. It was once common for heart surgeons, who perform highly specialized
and complex procedures, to make long incisions in a patient"s chest and then split the breastbone to reach the
heart. Patients who undergo surgery are often at the risk of infection (感染), as bacteria can infect the cut in
the skin. In addition, there is often a lengthy recovery period.
A surgical technique known as "keyhole surgery" has become more common in recent years. In general,
the surgeon will make a couple of small incisions around the area where the operation I"m going to be
performed. Tubes are pushed into the holes, and a tiny camera is put into the body. The camera is attached to
a large monitor screen and the doctor can see it while performing the operation. In addition to the camera,
doctors also push their tiny surgical instruments through the tubes. The awkward part of keyhole surgery is
that it is counterintuitive; that is to say, if a surgeon wants to move the tool to the left, he or she must push it
to the right.
Another new machine called the "da Vinci Surgical System" has been tested in hospitals in the US-Unlike
keyhole surgery, this robot"s moving parts are designed to copy man"s hand and wrist movement, thus
providing better control and sensitivity. Sitting at a console (控制台) a few feet from the patient, the surgeon
can control the instruments by moving highly sensitive pads. The area of the body is enlarged on a screen,
which gives surgeons a view similar to that of a traditional surgical procedure.
The da Vinci Surgical System has been welcomed as revolutionary by many surgeons. Patients with serious
illnesses must still undergo major surgery, but the smaller incisions typically mean a shorter recovery time. On
the downside, some operations have taken up to fifty minutes longer because surgeons are inexperienced at
using the new technology. As surgeons become more familiar with the machines, the time needed for surgical
procedures is likely to decrease. | | 1. What can be learned about the traditional surgery according to the passage? | A. Long incisions are made in a patient"s chest.
B. It often takes a longer time to do an operation.
C. The cost of the traditional surgery is very high.
D. The incision is likely to be infected after the operation. | | 2. Which of the following is one disadvantage of keyhole surgery? | A. It requires the use of long thin tools and a tiny camera.
B. The doctor cannot view the inside of the patient"s body clearly.
C. The direction in which a doctor moves the surgical tools is opposite.
D. A tiny camera has to be inserted into the patient"s body in advance. | | 3. The da Vinci Surgical System differs from keyhole surgery in that it _____. | A. requires that a surgeon make more small incisions on a patient
B. reduces the amount of time it takes to perform a surgical procedure
C. allows the surgeon to use the surgical instruments more sensitively
D. gets rid of the need for surgeons to make large incisions on patients | | 4. The passage mainly tells readers about _____. | A. the challenges brought about by new technology
B. the application of new technologies in modem surgery
C. the reflections on the development in medical science
D. the benefits and drawbacks of the da Vinci Surgical System | 最新试题
热门考点
|
|