题目内容
（请给出正确答案）
[单选题]
We are used to using body language to help （) meanings.
A.convey
B.contact
C.contract
D.deliver
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题目内容
（请给出正确答案）
A.convey
B.contact
C.contract
D.deliver
答案
更多“We are used to using body language to help () meanings.”相关的问题
第1题
In order to support this argument, the writer gives the example that ______ .
A．a machine using solar energy efficiently has already been developed
B．the sun is our final source of power
C．man uses only a tiny part of the sun's energy
D．the part of the sun's energy we use is used indirectly
第2题
. the amount of; C. a number of} salt in fresh water used on coastal farms. As a result farmers are increasingly {A. unable; B. able; C. possible} to use fields close to the sea.
Scientists call this process “salinization” which means a mixture of salt and water. Salinization is reducing the world’s irrigated lands {A. to; B. by; C. at} 1 to 2 percent every year.
But a farmer in the Netherlands is now using a mixture of sea and fresh water to grow healthy and tasty vegetables. Marc Van started with an {A. investment; B. examination; C. experiment}. “We put in a lot of plants in the fields and then we put in, put them in fresh water and in sea water and all the varieties between it, and then we see which variety is surviving and which variety is {A. living; B. dead; C. dying}.”
第3题
In the United States where land is cheap．the ratio of land to labor used in cattle raising is higher than that of land used in wheat growing．But in more crowded countries．where land is expensive and labor is cheap，it is common to raise cows by using less land and more labor than Americans use to grow wheat．Can we still say that raising cattle is land intensive compared with farming wheat？ Why or why not？
第4题
Suppose a man wanted to reach a distant star. Even if he traveled his whole life, he would have to move faster than the speed of the light. Nothing can move that fast except light itself.
Strange things happen to an object when it moves rapidly. The object weighs more. An object moving at 86 percent of the speed of light is twice as heavy as it is at rest. A stick appears shorter. A clock runs more slowly. A man would not age so fast as he would on the earth.
Light travels more than 186,000 miles a second, or about 11 million miles a minute. In one year, light travels six trillion miles. That great distance is called a light-year. It is used to measure distance in space.
The star closest to our sun is Alpha Centauri. It is more than four light-years away. If one traveled at the speed of light, he could make a round trip to Alpha Centauri in nine years. But, even at that speed, he could not reach Alcaid (北斗星) in the handle of the Big Dipper. A one-way journey to Alcaid would take almost 200 years
1．In this passage the words “closest to our sun” means the star（）.
A、the earth we live on
B、Alpha Centauri
C、the Big Dipper
D、the moon
2．A one-way journey to Alcaid would take（）.
A、about nine years
B、less than four years
C、almost 200 years
D、less than 100 years
3．Why do we measure the distance in light-years instead of miles?（）
A、Units of light-years sound better.
B、Using light- years reduced the number of figures used.
C、We used to measure distance in light-years long ago.
D、We do not make mistakes when we use light-years.
4．If a stone moved at the speed of light, it（）.
A、would weigh twice more than it is motionless
B、would weigh as much as it is on earth
C、would weigh less than it is on earth
D、would not have weight at all
5．This story is mainly about （）.
A、the distance between the sun and the other stars
B、the problems of traveling to faraway stars
C、what happens when we travel faster than the speed of light
D、the tool we use when we go to faraway stars
第5题
The tool is the laser and it is, being used by more and more surgeons all over the world, for a very large number of different complaints. The word laser means: Light Amplification by Stimulated Emission of Radiation. As we all know, light is hot; any source of light--from the sun itself down to a humble match burning--will give warmth. But light is usually spread out over a wide area. The light in a laser beam, however, is concentrated. This means that a light with no more power than that produced by an ordinary electric light bulb becomes intensely strong as it is concentrated to a pinpoint-sized beam.
Experiments with these pinpoint beams have shown researchers that different energy sources produce beams that have a particular effect on certain living cells. It is possible for eye surgeons to operate on the back of the human eye without harming the front of the eye, simply by passing a laser beam right through the eyeball. No knives, no stitches, no unwanted damage--a true surgical wonder.
Operations which once left patients exhausted and in need of long periods of recovery time now leave them feeling relaxed and comfortable. So much more difficult operations can now be tried.
The rapid development of laser techniques in the past ten years has made it clear that the future is likely to be very exciting. Perhaps some cancers will be treated with laser in a way that makes surgery not only safer but more effective. Altogether, tomorrow may see more and more information coming to light on the diseases which can be treated medically.
We find that after the development of the laser in the 1960s, ______.
A．medical help became available to industrial workers
B．the study of surgical techniques went through a complete revolution
C．more and more surgeons began using surgical instruments
D．man's whole approach to surgery changed completely
第6题
A.use
B.is used
C.using
D.used
第7题
Mobile Phones: Are They about to Transform. Our Lives？
We love them so much that some of us sleep with them under the pillow, yet we are increasingly concerned that we cannot escape their electronic reach. We use them to convey our most intimate secrets, yet we worry that they are a threat to our privacy. We rely on them more than the Internet to cope with modern life, yet many of us don't believe advertisements saying we need more advanced services.
Sweeping aside the doubts that many people feel about the benefits of new third generation phones and fears over the health effects of phone masts(天线杆), a recent report clains that the long-term effects of new mobile technologies will be entirely positive so long as the public can be convinced to make use of them. Research about users of mobile phones reveals that the mobile has already moved beyond being a mere practical communications tool to become the backbone (支柱)of modern social life, from love affairs to friendship to work. One female teacher, 32, told the researchers: “I love my phone. It's my friend. ”
The close relationship between user and phone is most pronounced among teenagers, the report says, who regard their mobiles as an expression of their identity. This is partly because mobiles are seen as being beyond the control of parents. But the researchers suggest that another reason may be that mobiles, especially text messaging, are seen as a way of overcoming shyness. “Texting is often used for apologies, to excuse lateness or to communicate other things that make us uncomfortable, ”the report says, The impact of phones, however, has been local rather than global, supporting existing friendships and networks, rather than opening users to a new broader community. Even the language of texting in one area can be incomprehensible to anybody from another area.
Among the most important benefits of using mobile phones, the report claims, will be a vastly improved mobile infrastructure(基础设施), providing gains throughout the economy, and the provision of a more sophisticated location-based services for users. The report calls on government to put more effort into the delivery of services by mobile phone, with suggestions including public transport and traffic information and doctors' text messages to remind patients of appointments. “I love that idea, ”one user said in an interview. “It would mean I wouldn't have to write a hundred messages to myself. ”
There are many other possibilities. At a recent trade fair in Sweden, a mobile navigation product was launched. When the user enters a destination, a route is automatically downloaded to their mobile and presented by voice, pictures and maps as they drive. In future, these devices will also be able to plan around congestion(交通堵塞)and road works in real time. Third generation phones will also allow for remote monitoring of patients by doctors. In Britain scientists are developing a asthma(哮喘)management solution, using mobiles to detect early signs of an attack.
What does the writer suggest in the first paragraph about our attitudes to mobile phones？
A．We can't live without them.
B．We are worried about using them so much.
C．We have contradictory feelings about them.
D．We need them more than anything else to deal with modem life.
第9题
You will quickly get used to_______ this new digital camera.
A、use
B、using
C、be ran
第10题
A.This phone is used to study
B.He is used to use this phone to study
C.He used to use this phone to study
D.He is using this phone to study
