We are busy talking about and using the Internet, but how many of us know the history of the Internet?
Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. Computer network didn’t work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sent through another part. In this way computer network system would keep on working on the time.
At first the Internet was only used by the government, but in the early 1970s, universities, hospitals and banks were allowed to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software that made “surfing” in the Internet more convenient.
Today it is easy to get on-line and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among students.
The Internet has now become one of the most important parts of people’s life.
1.A new network system was set up to _________.
A. make computers cheaper
B. make itself keep on working all the time
C. break down the whole network
D. make computers large and expensive
2.__________ made “surfing” the Internet more convenient.
A. Computers B. Hardware
C. Software D. Information
3.Which of the following is TRUE?
A. In the 1960s, computer network worked well.
B. In the early 1970s, the Internet was easy to use.
C. Today it’s still not easy to get on-line.
D. Sending e-mail is now more popular among students than before.
难度: 中等查看答案及解析
In this world, in many cases, a lot of same things can be united together. Also, many opposite things cannot be united by many people. But there is always a chance to unite two different things in one work. The following passage will tell you more about the possibility of combining painting and poetry.
Perhaps, it is not a new idea that a great work can be created by combining paintings and poems. In this case, we can unite both things in two ways. The first way is to make the poem as the main inspiration for the painting. It is also possible to write a poem after looking at a painting.
What about the next idea to combine painting and poetry? Well, we can combine both of them on a canvas. You can paint an oil painting on it and then write down the poem on that canvas. I do not know whether this kind of idea has been used for years. But this is quite a great new idea for me. It will make more people love painting and poetry at the same time. You will not need to read the poem on plain white cloth anymore.
A poem is a good way to represent a story or a thought. It is usually not too long and not easy to be understood literally (照字面意义). It is a series of words arranged in stanza (诗节) and lines with rhyme, which are quite changeable. Therefore, combining it with another type of art (such as painting) would be very good. You can get the message of the poem through the colors on the canvas. All you need to do is to use your creativity to make a painting with the right color and with great words on it.
1.The underlined word “canvas” in Paragraph 3 probably means ____.
A. a wall of a building B. a piece of paper
C. cloth for painting D. the screen of a computer
2.What can be inferred from the passage about painting and poetry?
A. Painting and poetry are so alike that they can be united.
B. Poetry can inspire us to paint and the opposite is also true.
C. Painting and poetry have been recently combined together.
D. The author created the idea of combining painting and poetry.
3.According to the passage, a poem usually has all of the following features EXCEPT ________.
A. not being too long B. being representative
C. having deep meanings D. having fixed forms
难度: 中等查看答案及解析
Japanese researchers are genetically changing mosquitoes so that they become carriers of a vaccine (疫苗) that could vaccinate millions for free. The researchers have already genetically changed a mosquito species so that its saliva (唾液) contains a protein that acts as a vaccine against leishmaniasis(利什曼病）, a deadly disease that leads to terrible skin problems. The team confirmed that mice bitten by the genetically-engineered mosquito developed an antibody to the disease, meaning they had built up immunity (免疫力).
“You would be vaccinated without even noticing. You wouldn’t need any drug and you wouldn’t need to show up at a fixed place for mass vaccinations,” said Shigeto Yoshida, the associate professor who has led the research. “Repeated bites would only strengthen the immunity.”
Similarly the mosquitoes could be used to help treat malaria (疟疾), perhaps a decade from now, said the malaria expert.
Nearly one million people die each year from malaria ---- most of them are children ---- mainly in Africa and Asia, according to the World Health Organization. Now a problem is that no effective vaccine exists. “There is a treatment that works, but it is beyond the reach of people who need to worry about food for tomorrow,” Yoshida said.
However, Yoshida expects that the genetically-engineered mosquito will finally help wipe out the deadly disease in the developing world. “Technically speaking, I believe it’s a matter of 10 years or so, but it’s not clear whether society would accept it,” he said.
Another problem is that the genetically-engineered mosquito may still pick up and spread the infected blood of a person who has already caught malaria. Yoshida’s team is hoping it can solve this problem by developing a mosquito species that kills the malaria virus inside its own body.
1.How have scientists turned mosquitoes into carriers of a vaccine?
A. By changing their genes. B. By killing the virus in their bodies.
C. By letting them bite mice. D. By injecting vaccines into their bodies.
2.Which of the following is NOT an advantage of using mosquitoes as vaccine carriers?
A. It’s free of charge. B. It’s convenient.
C. It’s more effective. D. It’s unnoticeable.
3.What can we infer from the last two paragraphs?
A. People welcome the idea of using mosquitoes to treat malaria.
B. Mosquitoes carrying vaccines may still spread malaria.
C. It is not long before people will use mosquitoes to get rid of malaria.
D. A mosquito can kill the malaria virus inside its own body.
4.The main purpose of the passage is to .
A. introduce a possible solution to malaria
B. encourage people to use mosquitoes to fight against diseases
C. show that Japan has very advanced technology
D. call on people to help people suffering from malaria in Africa and Asia
难度: 中等查看答案及解析
In our life most people like green and green is an important color in nature. It is the color of most growing plants. Sometimes, the word green means young, fresh, and growing. 1..
For example, a greenhorn is someone who has no experience, who is new to a situation. In the 15th century, a greenhorn was a young cow or ox whose horns have not yet developed. 2.. By the 18th century, a greenhorn had the meaning it has today ---- a person who is new in a job.
About 100 years ago. Greenhorn was a popular expression in the American west.3.. The greenhorn lacked the skills he would need to live in the hard, rough country.
Someone who has the ability to grow plants well is said to have a green thumb. 4.
A person with green thumb seems to make the plants grow quickly and well. You might say that the woman next door had a green thumb if her garden continues to grow long after your plants have died.
Green is also used to describe the unpleasant emotion, jealousy. The green-eyed monster is not a frightening creature from outer space. It is an expression used about 400 years ago by William Shakespeare in his play “Othello”. 5. A young man may suffer from the green-eyed monster if his girlfriend begins going out with someone else. Or, that green-eyed monster may affect your friend if you get a pay raise and she does not.
A.The plants produced much larger crops.
B.The expression comes from the early 1900s.
C.Sometimes, it describes something that is not yet ripe or finished.
D.Later, it meant a soldier who had not yet had any experience in battle.
E.It was used to describe a man who had just arrived from one of the big cities.
F.It was the result of hard work by agricultural scientists who had green thumbs.
G.It describes the unpleasant feeling a person has when someone has something he wants.
难度: 中等查看答案及解析
What can education do on you? Is it important for you? What influence? In our discussion with people on how education can help them succeed in life，a woman remembered the first meeting of an introductory ___________course about 20 years ago．
The professor _________ the lecture hall，placed upon his desk a large jar filled with dried beans, and invited the students to ______ how many beans the jar contained．After ______shouts of wildly wrong guesses the professor smiled a thin，dry smile，announced the _______answer, and went on saying，“You have just _____ an important lesson about science．That is：Never ____ your own senses”
Twenty years later, the _______ could guess what the professor had in mind．He _______ himself，perhaps，as inviting his students to start an exciting ________into all unknown world invisible(无形的)to the _______，which can be discovered only through scientific _______．But the seventeen-year-old girl could not accept or even _______ the invitation．She was just _______to understand the world．And she ____________that her firsthand experience could be the __________．The professor, however，said that it was __________. He was taking away her only ____________for knowing and was providing her with no substitute(替代). “I remember feeling small and __________ ，” the woman says，“and I did the only thing I could do．I ____________the course that afternoon，and I haven’t gone near science since．”
1.A. art B. history C. science D. math
2.A. searched for B. looked at C. got through D. marched into
3.A. count B. guess C. report D. watch
4.A. warning B. giving C. turning away D. 1istening to
5.A. ready B. possible C. correct D. difficult
6.A. 1earned B. prepared C. taught D. taken
7.A. lose B. trust C. sharpen D. show
8.A. 1ecturer B. scientist C. speaker D. woman
9.A. described B. respected C. saw D. served
10.A. voyage B. movement C. change D. rush
11.A. professor B. eye C. knowledge D. light
12.A. model B. senses C. spirit D. methods
13.A. hear B. make C. present D. refuse
14.A. suggesting B. beginning C. pretending D. waiting
15.A. believed B. doubted C. proved D. explained
16.A. growth B. strength C. faith D. truth
17.A. firm B. interesting C. wrong D. acceptable
18.A. task B. tool C. success D. connection
19.A. cruel B. proud C. frightened D. brave
20.A. dropped B. started C. passed D. missed
难度: 中等查看答案及解析
阅读下列句子，根据汉语或首字母提示，在空白处填入一个适当的且形式正确的单词，使句意完整。
1.The method of _____________ ( 减少) the meeting cost has been discussed by us.
2.Everyone must ___________ (遵守 ) traffic regulations when driving. If he doesn’t, he is a victim of road accidents.
3.Now in our life, computers have replaced television as our most popular form of _________ ( 娱乐).
4.A bird was caught in the net, _____________ ( 挣扎) to escape.
5.Each person’s fingerprints are u_____________ , so the police often solve the crime according to the fingerprint.
6.In my class, many students have different a____________ to the study of English.
7.There are many o___________ when we get together to talk about something we are interested in.
8.Although I am in Beijing on business, I have had my gifts d____________for my mother’s birthday.
9.It’s very important for us to learn how to tell the difference between f___________and reality.
10.There has been a close a___________ between the two schools since they were set up.
难度: 简单查看答案及解析
阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
How can we learn and master a foreign language well? In order to know a foreign language thoroughly, four things are necessary. Firstly, we must understand the language when we hear1. spoken. Secondly, we must be able to speak it correctly with confidence and without hesitation. 2. ,we must be able to read the language , and fourthly, we must be able to write it. We must be able to make sentences that are grammatically correct.
There is no easy way to succeed 3.language learning. 4.good memory is of great help, but it is not enough only 5.(memory) rules from a grammar book. It is not much use learning by heart long lists of words and 6.meanings, studying the dictionary and so on. We must learn by using the language. 7.we are satisfied with only a few rules we have memorized, we are not really learning the language. “Learn through use” is a good piece of 8.(advise) for those 9.are studying a new language. Practice is important. We must practise speaking and10.(write) the language whenever we can.
难度: 中等查看答案及解析
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者（从第11处起）不计分。
We often think insects to be harmless. This is partly true. Many an insect are harmful. Flies carry diseases. Others insects carry diseases, too. Farmers are at war with insects most the time. Hunger insects kill crops in the fields. Farmers spray the field as to get rid of these insects. Does this means that all insects are harmful? No. Many are of great helpful to man. Bees make honey. With bees and other insects, many trees would have not fruit. Silkworms make silk. Some insects eat other insects that kill fruit trees.
难度: 中等查看答案及解析
目前．地球面临水资源危饥。《21世纪报》学生版针对此情况面向全体中学生征稿，呼吁人们重视目前的问题，并保护水资源，征稿题目是：Global Shortage of Fresh Water请根据以下提示写一篇100词左右的短文，向《21世纪报》投稿。
稿件要点：1．人们认为淡水是取之不尽的，而实际不是；
2.淡水资源危机的原因；
3.人们应该采取的措施。
Global Shortage of Fresh Water
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难度: 中等查看答案及解析