根据短文内容，选出一个最佳答案填入题前括号内。 A smile will tell people around you that you are a kind and friendly...

题型：阅读选择题类：常考题难易度：普通

根据短文内容，选出一个最佳答案填入题前括号内。

A smile will tell people around you that you are a kind and friendly person. However,many people don't smile because they think they ugly teeth. For example, one of my classmates, Mile, doesn't have very nice teeth,so thatis why he seldom opens his mouth.he even says that he has lost cofidence because of his teeth.So it is very important for us to look after our teeth. In fact, a lot of people have this problem. Some people inherit teeth problems from their parents,while others'teeth are damaged because of bad habits,like heavy smoking,eating too much sugar or not brush-ing teeth often.If your teeth are in bad shape, you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of then.
Smiling can help you to feel more confident and make other people think of you as a more friendly person. If you want to keephealthy, you should not only smile but also laugh. An Indian doctor called Kataria said that young children should laugh about 300 times a day, wile adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now!

（1）、What has made Mike lose his confidence?

A、His bad habit. B、His bad teeth. C、Not smiling. D、Eating too much sugar.

（2）、Many people don't smile because .

A、they don't like smiling B、they think they are ugly C、their teeth are not beautiful D、they can't open their mouths

（3）、What can a dentist do according to the passage?

A、A dentist can tell you how to improve your bad teeth. B、A dentist can help you to take care of your bad teeth. C、A dentist can tell you how to brush your teeth. D、Both A and B.

（4）、If you want to keep healthy, you had better .

A、not smile often B、laugh all the time C、neiter smile nor laugh D、smile and even laugh often

（5）、How many times should a child laugh every day in doctor Kataria's opinion?

A、Either 300 or 30 times a day. B、Between 7 and 15 times a day. C、Around 300 times a day. D、Only 30 times a day.

举一反三

The world is not only hungry but also thirsty for water. This may seem strange to you, since nearly 70% of the earth's surface is covered with water. But about 97% of that is sea water or salt water. Man can only drink and use the other 3% of fresh water from rivers, lakes, underground and so on. And we can not even use all of that because some of it has been made dirty.
Earth Day is April 22. But on all other days, we must also remember how important water is. The water that we use is the most important natural resource on the earth. Today we face serious water problems. One of them is water pollution. All kinds of things from cars, factories, farms and homes make our rivers, lakes and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish, too.
How do cars and factories make our water dirty? First they pollute the air. Then when it rains, the rain water makes our drinking water dirty. Dirty rain, called acid rain is also bad for plants, animals and buildings. Scientists say that in 30 years, more than half of the people in the world won't have enough clean water. We have to learn how to stop wasting water. One of the first steps is to develop ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer system (下水道). From there it returns to the sea or goes underground.
But even though every large city reused its water, we would still not have enough. So we should make use of sea water by removing the salt in it. If we can take these steps, fresh water won't be used up.

Apple's logo is one of the most familiar icons(图标) around the world. But what's the story about the Apple logo? The image of the apple is obvious, because that's the name of the company. What about the bite? The famous story is that the logo shows respect and honour for Alan Turing. He was the father of computer science. He researched artificial intelligence(人工智能) and unlocked German wartime codes(密码). However，after the war, he was put into prison，because of his beliefs. He could not stand the looking down and chose to bite a poisoned apple to end his life in the prison.
However, Rob Janoff, who designed the famous Apple logo, said, “It's not the truth, but only a legend(传说, 传奇). The real reason why I designed it with a bite is very simple. I wanted people to get that it was an apple not a cherry (樱桃). When I go to markets to buy apples, I always mistake apples for cherries. It really has nothing to do with the scientist.”
Are you kidding? An apple is much bigger than a cherry. It's very easy to tell. But if you use an apple to design a logo, some people may mistake it for a cherry.

根据短文内容，完成下列各题。1题为判断正误;2题完成句子; 3-4题简略回答问题.

Several Asian hospitals are doing experiments with tele-medicine. Tele-medicine is a technology that allows doctors to "see" patients without them being in the same place. This is made possible through high-speed communication networks(网络). At both ends of the line, the way of video-meeting lets them see and talk to each other. Blood pressure (血压) and body temperature are directly shown on computers.

Tele-medicine is already in wide use in some places such as the United States and Germany. Among other uses, village doctors hold "consultations (会诊)"with far-away experts(专家). The experts can also help them during operations.

Tele-medicine has been slow to reach Asia because of high costs besides other reasons. When things improve, this technology will develop very fast. Chinese University of Hong Kong's medical school has joined a big hospital in Beijing, and Thailand is building a tele-medicine station connecting 20 areas.

Tele-medicine will do good to patients because doctors from different places can see them and give their medical advice. The help is quite important if the disease is an unusual one. It also helps spread medical knowledge among experts.

As tele-medicine develops well, its costs will be lower and it will become very popular in the medical field.

阅读理解

Dear Edward,

How are you doing? I just visited Machu Picchu in Peru today. I've never seen such a great place before. This place is so amazing that I want to share my feelings with you.

When I first got to Machu Picchu, I felt like I was walking in the sky. Even the clouds were just under my feet. Do you know how high Machu Picchu is? I was surprised that it was at about 2,500m. How could people build a city on such a high mountain? It must have been very difficult to move stones there.

Before the Europeans arrived, the Incas (印加人) were the last and the most modern society in the Andes (安第斯山). The Incas were afraid that the Spanish would find them, so they built Machu Picchu on an Andes plain (平地) as a secret city in the 14th or 15th century. As a result, the Spanish never found Machu Picchu.

An American explorer discovered Machu Picchu in 1911. For a long time before that, nobody even knew Machu Picchu was there. After Machu Picchu was found, it was called “The Lost City of the Incas”. It is still a mystery why and how Machu Picchu was left and forgotten by everyone.

I just had a wonderful day. Especially, I will never forget the “goodbye boy” who was a local boy dressed in traditional Inca clothes. When we went down the mountain by bus, the boy waved goodbye to us until we were out of sight (视线). He shouted some words at us too, and I guess, it meant, “Goodbye, come back again soon!” Why don't you visit Machu Picchu someday? I am sure you will love this place as much as I do.

Yours truly,

Lynn

阅读理解

There are some easy things you can do to protect the environment and the earth. Choose ideas from the list or come up with a few of your own.

•Plant flowers, grass or trees.

•Whenever you visit a park or beach, take away what you bring there—keep rubbish in a bag until you can put it in a dustbin.

•Turn off the lights and TV sets when you leave the room. This can save a lot of electricity.

•Turn off the tap when you brush your teeth. You can save some water by not letting it run. Also, use a glass cup instead of a paper cup because this saves paper.

•Keep the doors and windows closed in winter to keep warm air in.

•Give your old books and magazines to a library instead of throwing them away.

•Give your old clothes to poor children you know instead of throwing them away.

•Use both sides of paper.

•Stop pouring dirty water into the rivers or lakes nearby.

•Encourage all your friends to do the same things you do to help protect the earth. You don't have to wait until Earth Day to do these things. Make every day Earth Day. If everyone makes a contribution to protecting the environment, the world will become much more beautiful.

完形填空

Linda and Lily are sisters. Linda is fourteen1old and Lily is eleven. They2in Beijing with their parents this year. They are3in Beijing, so they don't know much about it. They are students, but they are not in the same school. Linda's school is not near (在……附近) her home. How4is it from her home to school? It's about five kilometers. So she usually goes to school5bus. She walks to the bus stop near her home first. And then she6a bus to school.7usually takes her half an hour to get to school.

Lily's school is8one kilometer from her home. She usually9her bike to school.10when she gets up early sometimes, she will walk to school. She likes walking in the fine weather (天气). When she goes to school by bike, it usually takes her ten minutes. When she walks, it always takes her twenty — five minutes.

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