Water is important to all living things but some areas in the world are short of water a lot.So we should try to protect and save water.
A group of students from Zhejiang University have successfully developed an"air hand﹣washing machine".The machine uses an infrared ray induction system （红外线感应系统），which can feel the presenceof our hands.If it feels there are hands，the water with the air will come from the tap.And it has been proven that it is nearly as effective as traditional hand﹣washing.It uses only ten percent of the water that regular hand﹣washing does.The students have even set up a company to introduce the product to the public.
Li Qizhang，a member of the team that developed the machine，told a reporter that a model of their machine had already been placed in a classroom building at the university and it worked very well.
In 2014，a student called Chen Puyang first thought of the idea while he was washing his hands.Washing one's hands uses a lot of water，Chen thought.Would it be possible to replace the water with air？ Others may not give the question a second thought.However，for Chen and Li，who were studying fluid mechanics （流体力学） at the time，this was considered to be an excellent idea.
Soon，Chen，Li and several classmates started on the project.After a year of research，the team cam up with a gravity﹣driven （重力驱动） hand﹣washing machine successfully.
根据短文内容，选择最佳选项。
（1）The underlined words"presence" means " "in paragraph 2.
| A． |
形状 |
| B． |
存在 |
| C． |
距离 |
| D． |
影响 |
（2）The underlined sentence in the 4th paragraph means .
| A． |
other people may no spend a second thinking about the question again |
| B． |
other people may think it is impossible to use air instead of water |
| C． |
other people may not think or worry about the question all |
| D． |
other people may think there is no answer to the question |
（3）We can infer from the passage that .
| A． |
the air hand﹣washing machine will be expensive |
| B． |
you can wash your hands clean without any electricity |
| C． |
you can buy the "air hand﹣ washing machine" in the shop now |
| D． |
the students developed the machine by the knowledge of fluid mechanics |
（4）Which of the following is TRUE about the"air hand﹣washing machine"？
| A． |
A company was set up to produce the machine. |
| B． |
It doesn't need any water when you wash your hand. |
| C． |
It was invented by two students from Zhejiang University. |
| D． |
The idea of the machine came to Chen's mind in a sudden. |
（5）Compared with the air hand﹣washing machine，how much water can be wasted by regular hand﹣washing？
| A． |
Only ten percent of the water. |
| B． |
About twenty percent of the water. |
| C． |
About ninety percent of the water. |
| D． |
A hundred percent of the water. |
King’s College Summer School is an annual (年度的) training program for high school students at all levels who want to improve their English. Courses are given by the teachers of King’s College and other colleges in New York. Trips to museums and culture centers are also organized. This year’s summer school will be from July 25 to August 15. More information is as follows:
| Application date ▼ Students in New York should send their applications before July 18, 2013. ▼ Students of other cities should send their applications before July 16, 2013. ▼ Foreign students should send their applications before July 10, 2013. |
Courses ▼ English Language Spoken English: 22 hours Reading and Writing: 10 hours ▼ American History: 16 hours ▼ American Culture: 16 hours |
| Steps ▼ A letter of self-introduction ▼ A letter of recommendation(推荐) The letters should be written in English with all necessary information. |
Cost ▼ Daily lessons: $200 ▼ Sports and activities: $100 ▼ Travel: $200 ▼ Hotel service: $400 You may choose to live with your friends or relatives(亲属) in the same city. |
| Please write to: Thompson, Sanders 1026 King’s Street, New York, NY10016, USA E-mail to: KC-Summer School @ yahoo.com |
The summer training program includes all of the following except ______.
| A．doing a part-time job | B．taking courses |
| C．having sports | D．travelling |
If you want to live at a relative’s home in New York, you will have to pay the school ______.
| A．$ 200 | B．$ 400 | C．$ 500 | D．$ 900 |
Which of the following statements is True?
| A．The program will last two months. |
| B．You can e-mail or call the school. |
| C．You should write to Thompson only in English. |
| D．Students in China can send applications only on July 10. |
You are probably familiar with the saying：An apple a day keeps the doctor away. A recent research carried out by the Chinese University of Hong Kong may change the saying:
An apple a day may keep aging away.
The research chose fruit flies(果蝇), as they share many genes(基因)with humans. The fruit flies were either fed normally or had an apple extract(浓缩物) added to their diet.
It turned out that those fruit flies that were given apple extract lived about 55 days—five days longer than the flies that were normally fed. The research group also found it easier for the flies to walk，climb and move about as they aged.
According to the result, the researchers believed that the antioxidants(抗氧化剂) in the apple extract helped clean up dangerous chemicals(化学物质) that cause illnesses，as well as aging.
In another study，researchers examined diets of thousands of women. They discovered that those who regularly ate apples were 20 percent less likely to suffer heart illnesses and stroke.
The apples’ genetic code(遗传密码) was discovered recently. It allows scientists to develop nicer and healthier fruits. Researchers are already using the information to grow a kind of apples full of antioxidants that can keep eyes and joints healthy and protect humans against heart illnesses and cancer.
Apples that kill the desire(欲望) to eat could also be produced, with the first“extra-healthy’’apples on supermarket shelves within just four or five years.
The team that keeps studying apple DNA includes 100 scientists from five countries. Their research also suggests that around 65 million years ago, when dinosaurs began to die off the plant，which would finally become today’s apple tree, experienced a great genetic change. The number of many of its genes doubled. The extra genes allowed the apple to get used to worse conditions and go through a different development from peaches，strawberries and other related fruits.Why were fruit flies used for the research?
| A．Because they have a similar diet to humans. |
| B．Because they have a history as long as apples. |
| C．Because they share a lot of genes with humans. |
| D．Because they feed on nothing but apple extract. |
What result did the researchers find out?
| A．Apples produce chemicals that can change human genes. |
| B．Apples have antioxidants that kill chemicals that cause aging. |
| C．Apples are rich in vitamins that are needed in humans’ bodies. |
| D．Apples produce chemicals that make apples taste more delicious. |
What happened to apples around 65 million years ago according to the research?
| A．Their genes stopped their development as the environment got worse. |
| B．Their genes became twice in number but they finally died off like dinosaurs. |
| C．They experienced a great genetic change making them get used to worse conditions. |
| D．They went through a similar development to peaches, strawberries and other related fruits. |
What can we infer(推断)from the passage?
| A．Eating apples may bring us more advantages than we might believe before. |
| B．People who have the habit of eating apples don’t need to see a doctor. |
| C．Apples that kill the desire to eat are already available in supermarkets now. |
| D．People will eat apples instead of peaches and strawberries from now on. |
We don’t know how different our future will be in the future. We can only try to imagine it.
At first we think about human relationship. In the year 2050, we will use computers almost every day we will be making new friends through the Internet—even our husbands or wives will be met in this way. It will be much faster and easier for us. On the other hand, our relationships with people won’t be as important as they are today—we will feel a little lonely.
Computers will also help us in many other activities in 2050. For example, they will be used by the children at school to make their learning easier. In addition, there will be much more other machines which will play a similar role as computers, like robots which will do the homework for us.
Spending holidays will also be completely different. Traveling to other planets or to the moon will be available for everyone. Means(方式) of transport will, of course, change, too. We will be using solar-powered cars, which will be much cleaner.
We could expect that the faster technological progress would lead to a more polluted environment. But it isn’t true. We will pay more attention to protecting the environment. And, scientists will probably find cures for many dangerous diseases, like cancer or AIDS. Therefore, our surroundings as well as health will be in better condition.
Although we can’t predict(预测) the exact changes which will be made in the world, we often think about them. We worry about our and our children’s future; we have expectations, hopes as well as fears. But I think we should be rather sanguine(乐观的) about our future. We should be happy and believe good things will happen.Why will people probably feel a little lonely in 2050?
| A．Because the number of people will become much smaller． |
| B．Because there will be less face-to-face communication |
| C．Because people won’t like making friends with each other |
| D．Because people won’t communicate with each other much often． |
According to the passage, which of the following will happen in 2050?
| A．The relationship between people will be more important than today. |
| B．The way of spending holidays will be the same as that of today. |
| C．It won’t be difficult for people to travel to other planets. |
| D．Our environment will be much more polluted with a growing number of cars. |
What does the passage mainly talk about?
| A．How people will communicate in the year 2050. |
| B．What our life will be like in the year 2050. |
| C．How people will travel and spend their holidays in the year 2050. |
| D．What high technology will appear in the year 2050. |
A few minutes before six o’clock, Mr. Smith decided to leave. He was about to start the car when a gunman jumped up from the back seat. He held a gun to Mr. Smith’s head. “Drive me to Paris!” he shouted.
“All right”, Mr. Smith answered. He started the engine, pulled away from the side of the street and drove down. Being eighty-one years old, he knew he could not fight the gunman. He knew he needed help. Where were the police? As he drove through a crossing, he looked up and down the side streets, hoping to meet a police car. But he could see nothing. “Just my luck,” he thought, “If I was driving too fast, there would be a police car on every corner.”
Suddenly he pushed his foot down on the accelerator(油门), and the car ran much faster. “What are you doing?” shouted the gunman. “Keeping off the police,” Mr. Smith answered. “I thought I saw a police car back there.”
He ran lights, drove the wrong way on one-way streets. On two-way streets he drove on the wrong side of the road. Not one policeman saw him. Again Mr. Smith’s plan was not working. He had to try a new plan. He turned a corner and saw the police station in front. Then he drove his car as fast as he could towards the police gate. The car hit a police motorbike down and stopped. Mr. Smith shouted, “Help! Help!” Then he reached back to grab(夺) the man’s gun. At the same time the policeman heard the noise and quickly caught the gunman.Why did Mr. Smith drive much faster suddenly?
| A．Because he wanted to keep off the police. |
| B．Because he saw a police car behind his. |
| C．Because his plan was working. |
| D．Because he wanted the police to see him. |
Which of the following is not TRUE?
| A．Mr. Smith ran lights, drove the wrong way on one-way streets. |
| B．Mr. Smith knew he didn’t need any help. |
| C．Mr. Smith drove his car as fast as he could towards the police gate. |
| D．Mr. Smith looked up and down the side street, hoping to meet a police car. |
From the passage, what can we infer(推测)?
| A．Mr. Smith is a strong man. |
| B．Mr. Smith is a shy man. |
| C．Mr. Smith is a wise man. |
| D．Mr. Smith is a stupid man. |
One of the things to be learnt in a foreign language is guessing all the time what kind of thing to come when listening to someone talking. People do this all the time in their own language, so it is necessary to do this in a foreign language, too. Here are some examples.
◆ “What’s the matter?” “I went to a party last night, so I…”
◆ “I feel so tired these days.” “I think you’d better…”
◆ “Of course, she never stops talking. She is one of the most…”
You can see from the above three examples that the context(上下文)helps a lot in understanding what is being talked about. So “guessing” is very important in understanding English, especially spoken English.This passage tells us mainly about _______.
| A．the importance of “guessing” in learning a foreign language |
| B．how to guess what one is going to talk about |
| C．some examples of right guessing |
| D．how important it is to guess all the time |
Which of the following best finishes the sentence in EXAMPLE 3?
| A．She is one of the most famous film stars. |
| B．She is one of the most beautiful women. |
| C．She is one of the most famous speakers. |
| D．She is one of the most talkative women. |
From the passage we can infer(推断)that guessing is _______ in learning a foreign language.
| A．the only way |
| B．more important in spoken English than in written English |
| C．more important than any other way |
| D．more important in written English than in spoken English |