All the machines ______by the end of this month. A. would have been repaired B. were repai
All the machines ______by the end of this month.
A. would have been repaired
B. were repaired
C. will have been repaired
D. were being repaired
All the machines ______by the end of this month.
A. would have been repaired
B. were repaired
C. will have been repaired
D. were being repaired
Today all that has changed. On many modern farms machines now supply 96 percent of the power, human labor 3 percent, and horses 1 percent. Modern farms are enterprising businesses which keep only the livestock that can pay its way. The children go to school by bus every morning, the parents work on the farm or in the house, and hired help is seldom needed. Their work has been replaced by a whole army of farm machines.
Farmers in the machine age also use the new fertilizers, new sprays, new feeds, new hybrid seeds, and other helps developed by farm sciences. As a result the farmers are able to produce more food with less labour. This means fewer but larger farms and fewer but more prosperous farmers.
In old days, most of the work on a farm was done by______.
A.all the farm family
B.livestock
C.farm machines
D.both A and B
Dear Mr Lee
Subject: Faulty HP 5590 Scanners
Three months ago, our training center bought 10 HP 5590 scanners from your company --- see our order number G868281. Until (1), these scanners worked properly. (2 ), we have started to notice that fuzzy image is becoming increasingly common with these scanners.(3) , this is a problem with this model that appears only after a few months' service. This is not satisfactory.
This matter is causing us great (4), since we need to scan a lot of documents every day. We should,(5 ), like you to replace all of the machines that we bought, with your newer model HP 5591 scanners,(6) , we understand, do not have the same design fault.
(7)you know, we do a lot of business with your company, and we have always (8) pleased with your service. It would be a great (9)if this good relationship is spoiled.
I look forward to (10)your reply soon.
Yours sincerely
Willow Zeng
Willow Zeng
General Manager
One important new use for computers is for entertainment. Many new games have been designed to be played, on the computers. People of all ages have been playing these games. They have been going to Arcades where the computer games can be played for a small cost. People also have been buying home computers ,to play computer games at home. They have become very popular indeed.
Computers in the United States ______.
A.used to be too small to use
B.used to be nice
C.used to be heavy
D.used to be large and expensive
Words are tools for communicating with other people, especially information about people. They are mainly social tools. Visual and spatial abilities are good for imagining and manipulating objects and for communicating information about them. Are these talents programmed into the brain? In some of the newest and most controversial research in neurophysiology(神经生理学), it has been suggested that when it comes to the brain, males are specialists while women are generalists.
But one knows that, if anything, this means in terms of the abilities of the two sexes. Engineering is both Visual and spatial, and it's true that there are relatively few women engineers. But women become just as skilled as men at shooting a rifle or driving a car, task that involve visual-spatial skills. They also do equally well at programming a computer, which is neither visual nor spatial. Women do, however, seem less likely to fall in love with the objects themselves. We all know men for whom machines seem to be extensions of their identity. A woman is more likely to see her car, rifle, or computer as a useful tool but not in itself fascinating.
According to the massage, women are usually good at______.
A.body language
B.logical reasoning
C.tasks demanding for the use of words
D.both A and B
Many of the home electric goods which are advertised as liberating the modern women tend to have the opposite effect, so they simply __1__change the nature of work instead of eliminting it. Machines have a certain novelty value, as toys for adults. It is certainly less __2__tired to put clothes in a washing machine, but the time saved does __3__not really amount too much: the machine has to be watched, the __4__clothes have to be carefully sorted out, stains removed by hand,water changed, clothes taken out, aired and ironed. It would be more liberal to pack it all off to a laundary and not necessarily __5__more expensive, since no capital investment is required.Nevertheless, if you really want to save time you do not make __6__cakes with an electric mixer, you buy one in a shop. If one compares the image of the woman in the women's magazine to the goods advertised __7__by those periodicals, one realizes how useful a projected image can be commercially.A careful balance has to be struck: if you show a labor-saving device, follow it up with a complex recipe on the next page; on __8__any account hint at the notion that a woman could get herself a __9__job, but instead foster her sense of her own usefulness, emphasize __10__the creative aspect of her funtion as a housewife.
Some of the computer experiments now going inspire imagination of the future. For example, scientists are working in devices that can electronically perform. some sight and hearing functions, which could make easier for the blind and deaf. They are also working on artificial arms and legs that respond to the electric impulses (脉冲) produced by the human brain. Scientists hope that someday a person who has lost an arm could still have near-normal brain control over an artificial arm.
Video games, computerized effects in movies, and real-life training machines now being used by the U. S. Army are causing some people to predict new educational uses for computers. Computers could someday be used to imitate travel to other planets, to explore the ocean floor or to look inside an atom.
Experiment with electronic banking and shopping inspire predictions that these activities will soon be done from home computer terminals (终端) . Cars, too, might be equipped with computers to help drivers find their way around or to communicate with home and office computers.
Many people, including handicapped (残废的) workers with limited ability to move around, already are working at home using computer terminals. Each terminal is connected to a system at a company's main office. Some futurists say the day may come when few people will have to leave home to go to work—they'll just turn on a terminal.
Which of the following would be the most appropriate title for the passage?
A.Futurists and Computers
B.A Look at Future Uses of Computers
C.Computer Experiments
D.Scientists and Computers
What is the main topic of the passage? ()
A.The need for agricultural advances to help feed a growing population.
B.The development of safer machines demanded by the labor movement.
C.Machinery that contributed to the agricultural revolution.
D.New Jersey as a leader in the agricultural revolution.
First of all, people spend less time working now than they used to, mostly due to the introduction of new industrial technology. The normal British working week is Monday to Friday, 9:00 a.m. to 5:00 p.m., although some people regularly work a few hours' overtime each week. Secondly, all working people get a minimum of two weeks' paid holiday a year. In addition, there are six or more bank holidays a year when all banks and businesses are closed. In some cases the dates of these national holidays change from year to year and in different parts of Britain.
Another reason is that, thanks to modern medicine and higher living standards, people live longer now. This means that after retirement, people have quite a few years of leisure left. Nowadays a much higher proportion of the population is over sixty, but in this group there are more women than men.
Finally, fewer babies are born each year and the average family in Britain has two children. This is one result of changing social attitudes. For example, many more married women now go out to work. The money they earn influences their leisure time. Even married women who do not go out to work have more time for interesting hobbies because most British homes have washing machines, vacuum cleaners and other labor-saving gadgets.
The best title of this passage can be ____.
A. Time for relax
B. Time for refreshment
C. British working hour
D. British family
“A paid holiday” (in Para. 2) means working people ____.
A. have to pay for their holiday
B. have no pay when they are on holiday
C. get usual pay when they are on holiday
D. get less pay when they are on holiday
Among the old people, there are ____.
A. as many men as women
B. more women than men
C. more men than women
D. many more women than men
In Britain, married women have more leisure hours because they have ____.
A. work with a good pay
B. a lot of time
C. washing-machines and vacuum cleaners
D. fewer children and more labor-saving gadgets
Which of the following ideas is NOT suggested in the passage?
A. Some married women have more time of reading.
B. Some married women have interesting hobbies.
C. Some married women now go out to work.
D. Some married women still stay at home.
century by the Italian naturalist Lazzaro Spallanzani.He caught some bats in a bell tower,blinded them,and released them outdoors.Four of these blind bats were recaptured after they had found their way back to the bell tower,and on examining heir stomachs‘ contents,Spallanzani found that
they had been able to capture and gorge themselves with flying insects.We know from experiments that bats easily find insects in the dark of night , even when the insects emit no sound that can be heard by human ears.A bat will catch hundreds of soft-bodied,silent-flying moths or gnats in a single hour.It will even detect and chase pebbles or cotton spitballs tossed into the air.
16.According to the author,the sonar system of bats is an example of the idea that.()
A.this is the age of technological triumphs
B.modern machines are inefficient
C.living mechanisms are often more efficient than man-made
machines
D.artificial imitations are always less efficient than living
mechanisms
17.The author suggests that the sonar system of bats ().
A.was at the height of its perfection 50 million years ago
B.is better than man-made sonar because it has had 50 million years to be refined
C.would have been discovered by man many years ago
D.is the same as it was 50 million years ago
18.The fact that“blind bats”will detect and chase cotton spitballs as well as insects is remarkable because.()
A.bats do not eat spitballs
B.cotton is harder to track
C.Spitballs make no sounds audible to human ears
D.there is purpose in the flight of insects
19.This passage was written to illustrate().
A.the deficiencies of man-made sonar
B.the dependence of man upon animals
C.that we are living in a machine age
D.that the sonar system of bats is remarkable
20.Which of the following is the main point of the passage?()
A.A bat will catch hundreds of gnats in a single hour
B.Here is a perfection in nature which sometimes cannot be matched by man‘s creative efforts
C.The phrase“blind as bat”is valid
D.director of NIH learned of the abuse