They required that the books to the school library at once． [ ] A． be returned B． should return C． return D． would be returned 题目和参考答案——青夏教育精英家教网—

题目内容

They required that the books ________ to the school library at once．

[　　]

A．

be returned

B．

should return

C．

return

D．

would be returned

答案：A
解析：

require后接宾语从句，句中谓语动词常用虚拟语气(should＋动词原形)，should常可省略。根据句意，空格处应用被动语态。故选A项。

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　　In order to communicate thoughts and feelings, there must be a conventional system of signs or symbols which mean the same to the sender and the receiver.

　　The means of sending communications are too numerous and varied for systematic classification; therefore, the analysis must begin with the means of receiving communication. Reception of communication is achieved by our senses. Sight. hearing and touch play the most important roles.

　　Examples of visual communication are gesture and mimicry. Although both frequently accompany speech, there are systems that rely solely on sight, such as those used by deaf and dumb persons. Another means of communicating visually is by signals of fire, smoke, flags, or flashing lights. Feelings may be simply communicated by touch, such as handshaking or backslapping, although a highly developed system of handshaking has enabled blind, deaf, and dumb persons to communicate intelligently. Whistling to someone, applauding in a theater and other forms of communication by sound rely upon the ear as a receiver. The most fully developed form of auditory communication is, of course, the spoken language.

　　The means of communication mentioned so far have two features(特点)in common; they last only a short time, and the persons involved must be relatively close to each other. Therefore, all are restricted in time and space.

1．Why does the author explain that he will deal with reception of communication first?

[　　]

A．communication actually takes place when the message is received

B．there are more means of receiving than sending communications

C．it is difficult to organize by type the means of sending communications

D．reception of communications involved use of the senses

2．Applauding is specifically mentioned as an example of ________.

[　　]

A．a simple system of visual communication

B．communication by touch

C．gesture and mimicry

D．communication by sound

3．Which of the following statements about communication by touch is true?

[　　]

A．It is possible to communicate intelligently by touch alone

B．Touch must accompany visual communication

C．Touch is not important as a means of communication

D．There is no well－developed system of communication based on touch

4．Which of the following statements about the ways of communicating ideas and feelings mentioned in the passage is false?

[　　]

A．They can be used to communicate over long distances

B．They require both a sender and a receiver

C．They involve use of conventional signs and symbols

D．They utilize the senses for reception

5．The author specifically mentions that speech is ________.

[　　]

A．necessary for satisfactory communication by gesture

B．the only highly developed form system of communication

C．often used when communicating by touch

D．the mast developed form of communication based on hearing

The definition of the standard kilogram is almost entirely wrong. Getting that definition right is a challenge that has tried the patience and intelligence of scientists for decades.

Scientists use just seven basic units to define all the other quantities we use — quantities such as speed or electric power. All of those basic units except the kilogram are themselves defined according to natural properties（属性）that are beyond human control.

For example, the standard second (time) is defined as a specific number of vibration（振动）of a type of radiation sent out by atoms of a special metal. The standard metre (length), in turn, is defined as the length of the path light travels under certain conditions.

Not so the kilogram. This orphan of the basic unit family is simply the mass of a small platinum-iridium alloy cylinder（铂—铱合金筒）locked away in a container maintained by the International Bureau of Weights & Measures in Sevres, France, near Paris. Official bodies around the world have copies of the cylinder.

Embarrassingly, the last time the copies were brought to Sevres for a checkup in the 1980s, officials found that some copies had gained about 20 parts per billion in weight compared to the master cylinder since the previous checkup in the 1940s. This implies that the master cylinder itself may be an inconstant standard.

Several efforts in several different countries are under way to redefine the kilogram according to basic physical quantities such as counting the actual number of atoms of a specific substance in a kilogram or the electromagnetic（电磁的）force that balances a kilogram mass against gravity. A project of the latter type at the laboratories in Gaithersburg, Md., hopes eventually to define mass by means of electrical units.

So far, none of these redefinition projects has borne fruit. They require the very accuracy of measurement and control of experimental conditions. The slightest influence — even a tiny change in weather — can ruin results. You’ve got to hand it to scientists who are willing to devote many years to such painstaking — but extremely important — research.

Compared with other basic units, the kilogram is ____.

A. as accurate as other basic units

B. not universally accepted in the world

C. not defined according to natural properties

D. defined in the same way as other basic units

The author introduced the examination of copies of a platinum-iridium alloy cylinder in the 1980s to indicate that ____.

A. the causes of weight changes had been found

B. such kind of checks had been carried out regularly

C. the changes in weight challenged the definition of the kilogram

D. the consequences of such changes were great in research

According to the passage, to define the weight of mass by means of electrical units ____.

A. is the only way to redefine the kilogram scientifically

B. has been accepted as the only possible redefinition project

C. is not as complicated as people understand

D. has been considered by some scientists as a better approach

Which of the following cannot be concluded from the passage?

A. Scientists will achieve success in redefining the kilogram in the near future

B. Some scientists are trying to redefine the kilogram according to basic physical quantities.

C. The redefining of the standard kilogram is quite complicated and can be affected by a number of factors.

D. A number of experiments are being carried out to redefine the kilogram.

Making an advertisement for television often costs more than a move．For example, a two-hour movie costs $ 6 million to make．A TV commercial can cost more than $ 6 000 a second．And that does not include cost of paying for air time(电视节目开始的时间)．Which is more valuable, the program or the ad? In terms of money--and making money is what television is all about the commercial is by far the more important．

Research, market testing, talent, time and money--all come together to make us want to buy a product．No matter how bad we think a commercial is, it works．The sales of Charm went up once the ads began．TV commercials actually buy their way into our head．We, in turn, buy the product．

And the ads work because so much time an attention are given them．Here are some rules of commercial ad making．If you want to get the low middle-class buyer, make sure the announcer has a tough, manly voice．Put some people in the ad who work with their hands．If you want to sell to upper-class audience, make sure that the house, the furniture, and the hair style are the types that the group identifies (识别) with．If you want the buyer feel superior to the character selling the product, then make that person so stupid or silly that everyone will feel great about himself or herself

We laugh at commercials．We don't think we pay that much attention them．But evidence shows we are kidding ourselves．The making of a commercial that costs so much money is not kid stuff．It's big, big business．And it's telling us what to think, what we need, and what to buy．To put simply, the TV commercial is a form of brainwashing．

TV commercials are more important than other programs to television because _______．

A．they bring in great profits (利润) B．they require a lot of money to make

C．they are not difficult to produce D．they attract more viewers than other programs

The purpose of all the efforts made in turning out TV commercials is ________．

A．to persuade people to buy the product B．to show how valuable the product is

C．to test the market value of the product D．to make them as interesting as TV movies

From the rules set for making commercial ads, we can see that_________．

A．the lower-middle-class buyer likes to work with his hand

B．the more stupid the characters, the more buyers of the product

C．ad designers attract different people with different skills

D．an upper-class buyer is more interested in houses and furniture than a lower-middle-class buyer

The word “kidding”(line 2, par．4) most probably means _________．

A．behaving as a child B．laughing at

C．making fun of D．not telling the truth to

It is believed by the writer that_________．

A．few people like to watch TV commercials

B．TV commercials are a good guide to buyers

C．TV commercials often make people laugh

D．people do not think highly of TV commercials

Making an advertisement for television often costs more than a movie．For example, a two-hour movie costs $ 6 million to make．A TV commercial can cost more than $ 6 000 a second．And that does not include cost of paying for air time(电视节目开始的时间)．Which is more valuable, the program or the ad? In terms of money--and making money is what television is all about the commercial is by far the more important．

Research, market testing, talent, time and money-----all come together to make us want to buy a product．No matter how bad we think a commercial is, it works．The sales of Charm went up once the ads began．TV commercials actually buy their way into our head．We, in turn, buy the product．

We laugh at commercials．We don't think we pay that much attention them．But facts show we are kidding ourselves．The making of a commercial that costs so much money is not kid stuff．It's big, big business．And it's telling us what to think, what we need, and what to buy．To put it simply, the TV commercial is a form of brainwashing．

TV commercials are more important than other programs to television because _______．

A．they bring in great profits (利润) B．they require a lot of money to make

C．they are not difficult to produce D．they attract more viewers than other programs

The purpose of all the efforts made in turning out TV commercials is ________．

A．to persuade people to buy the product B．to show how valuable the product is

C．to test the market value of the product D．to make them as interesting as TV movies

From the rules set for making commercial ads, we can see that_________．

A．the lower-middle-class buyer likes to work with his hand

B．the more stupid the characters, the more buyers of the product

C．ad designers attract different people with different skills

D．an upper-class buyer is more interested in houses and furniture than a lower-middle-class buyer

It is believed by the writer that_________．

A．few people like to watch TV commercials

B．TV commercials are a good guide to buyers

C．TV commercials often make people laugh

D．people do not think highly of TV commercials

Besides containing attractive flowers, trees and other plants that beautify the community, eco-friendly rain gardens are healthy for the environment and the people living and working nearby.
A rain garden is not very different from a traditional garden. It is just a far more eco-friendly garden. Usually it is built lower than the ground. Rain gardens make smart use of rain and storm water by temporarily holding water from rain and storms and letting it soak（浸人）slowly into the ground before it runs into streams or enters the public drinking water supply.
Thus, a rain garden keeps the water, allowing it to be used as needed by plants in the rain garden, rather than flowing immediately into nearby streams and going unused. The water will soak slowly into the ground within a day or two. This creates an advantage that the rain garden does not allow mosquitoes to breed. This is a simple, attractive, and eco-friendly “green” way to treat storm water.
What’s more, planting a rain garden helps reduce pollution and improve the environment. Without using expensive machinery and chemicals, rain gardens remove harmful chemicals in the rainwater and cut down on the amount of pollution reaching streams and rivers by up to 30%.
Native plants are recommended for rain gardens because they are more used to the locals climatem, soil, and water conditions. They may attract local wildlife such as native birds. Water your rain garden immediately after planting and once a week, unless you have had at least an inch of rain during the week. Once the native plants establish the necessary root system, it will require little care.
Often, local governments and private businesses develop large rain gardens in their yards and in public parks as a way to improve the environment and solve flooding problems. However, you don’t need to be a professional environmental engineer to create a rain garden. As long as you’re eco-conscious homeowners, you can help the environment by building smaller rain gardens in your yards.
【小题1】Which of the following is the eco-friendly function of rain gardens discussed in Paragraph 4?