Now satellites(卫星)are helping to forecast(预报)the weather. They are in space and
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Now satellites(卫星)are helping to forecast(预报)the weather. They are in space and they can reach any part of the world.The satellites take pictures of the atmosphere(大气), because this is where the weather forms(形成)。They send these pictures to the weather station. So meteorologists(气象专家)can see the weather of any part of the world. From the pictures, the scientists can often say how the weather will change.
Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures,the meteor- ologists compare(比较)them with earlier ones. Peerhaps they may find that the clouds have changed during the last few hours .This may mean the weather on the ground may soon change,too. In their next weather forecast, the meteorologists can say this.
So the weather satellites are a great help to the meteorologists. Before satellites were invented, the scientists could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for 3 or 5 days. Soon,perhaps , they may be ablet to forecast the weather for a week or more ahead(提前)
小题1:Satellites travel__________.
A in space B in the atmosphere
C above the ground D above space
小题2:Why do we use the weather satellites to take pictures of the atmosphere? Because___________.
A the weather satellites can do it easily
B clouds form there
C the weather forms there
D the pictures can forecast the weather
小题3: Meteorologists forecast the weather________.
A when they have received satellite pictures
B after they have compared new satellite pictures with earlier ones
C before they receive satellite pictures
D while they study satellite pictures
小题4:Maybe we’ll soon be able to forecast the weather for _______.
A one day B two days C five days D seven days or even longer
小题5:The main idea of this passage is that satellite are now used in______.
A taking pictures of the atmosphere
B receiving pictures of the atmosphere
C doing other work in many ways
D weather forecasting |
答案
小题1:A
小题2:C
小题3:B
小题4:D
小题5:D |
解析
小题1:本文第一，二两句为Now satellites(卫星)are helping to forecast(预报)the weather. They are in space and they can reach any part of the world.所表示的含义为卫星有助于预报天气，在太空中，故本题选A。
小题2:本文第三句为The satellites take pictures of the atmosphere(大气), because this is where the weather forms所表示的含义为天气卫星拍摄大气照片，因为在这个地方是大气构成的地方，故本题选C。
小题3:本文第二段第二行为When they receive new pictures,the meteor- ologists compare(比较)them with earlier ones. Peerhaps they may find that the clouds have changed during the last few hours .This may mean the weather on the ground may soon change,too所表示的含义为气象专家通过把卫星拍摄的照片和之前的照片作比较，最终得出预报的天气，故本题选B。
小题4:本文最后一句为perhaps , they may be able to forecast the weather for a week or more ahead(提前)，所表示的含义为我们很快将能够对7天甚至更长时间的天气作出预报，故本题选D。
小题5:本文主要谈论了天气卫星的有关情况，以及天气卫星如何被使用在天气预报中，故本题选D。 |
举一反三
Forests have always been useful and important to men who make use of them in many ways. Every day trees are serving man everywhere. Trees supply man with fruits and building materials in the form of wood. Without trees it would be impossible to build houses, boats, bridges and so on. Furniture such as desks, chairs and beds is made of wood. Trees can stop man from the terrible heat. They’re also useful in preventing(阻止) good and rich top soil from being washed away during heavy rains. If there were no forests, heavy rains would wash away the rich surface(表层) soil that is so important to plants. The result is that the land will become a desert. There are plenty of desert areas in the world. A long time ago these desert areas used to be very rich areas, but men in the past had no enough knowledge about science of nature, and they cut down too many trees in the area where they lived and never planted new ones. By and by, the rich surface soil was blown and washed away by strong winds and heavy rains. In the end the rich land changed into useless deserts where nothing could grow.
根据短文内容，判断正（T）误（F）。
1.Trees are not serving man everywhere.
2.Without trees it would be possible to build houses, boats, bridges and so on.
3.Trees can stop man from the terrible heat.
4.There are few desert areas in the world.
5.In the end the rich land changed into useless deserts where nothing could grow. |
A healthy diet along with exercise will help you look better, feel better and live longer. But I am 1 to say that many children don’t have a healthy lifestyle. They eat much junk（垃圾）food 2 French fries and fried chicken. Eating too much junk food and dessert is 3 .If you want to 4 a long and healthy life, you have to 5 your living habits（习惯）.
It is important to get a yearly physical examination（体检）,too. You don’t hope to 6 any bad news, but the doctor will tell you _7 healthy you are. It’s also a good idea for you to 8 a book on healthy eating. 9 milk or juice from fruits and vegetables can help to improve your health, too.
I am 10 good health now. People tell me that I look very young. Healthy eating has helped me and it will also help you!
小题1:.| A．happy | B．sad | C．excited | D．angry |
| 小题3: | | A．cheap | B．difficult | C．delicious | D．unhealthy |
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| 小题5: | | A．look for | B．look after | C．think of | D．agree with |
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| 小题6: | | A．hear | B．look at | C．see | D．feel |
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| 小题8: | | A．write | B．sell | C．read | D．take |
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| 小题9: | | A．Drink | B．Eat | C．Drinking | D．Eating |
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In most parts of the world, many students help their school make less pollution. They join in “environment clubs”. In an environment club, people work together to make our environment clean.
Here are things students often do：
Turn off the water! Do you know that some toilets can waste twenty to
forty tons of water an hour? In a year, that would fill a small water! In environment clubs, students mend those broken toilets.
No-car day. On a no-car day, nobody comes to school in a car-not the students and not the teachers. Cars give pollution to our air, so remember: walk, jump, bike or run.
Use your legs! It’s lots of fun!
No-garbage(垃圾) lunches. How much do you throw away after lunch?
Environment clubs ask students to bring their lunches in bags that can be used
again. Every week they will choose the classes that make the least garbage
and report them to the whole school.
We love our environment! Let’s work together to make it clean!
小题1: After mending the broken toilets, they save .| A．a small river | B．a lot of water | C．a toilet | D．a year |
小题2:On a no-car day, will take a car to school. | A．only students | B．only teachers | | C．both students and teachers | D．neither students nor teachers |
小题3:Environment clubs ask students .| A．to run to school every day | B．to play sports every day | | C．not to throw away lunch bags | D．not to forget to take cars |
小题4:From the passage we know that students usually have lunch .| A．at school | B．in clubs | C．at home | D．in shops |
小题5:The write wrote the passage to tell students to .| A．join in clubs | B．help teachers | C．make less pollution | D．clean schools |
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Teeth are important. Strong, healthy teeth help you chew foods that help you grow. They help you speak clearly. And, they help you look your best. Here are some advice for you to take care of your teeth.
● Brush your teeth the right way.
Brush your teeth at least twice a day after breakfast and before bedtime. If you can, brush after lunch or after sweet snacks（快餐）, too.
Brush all your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth. Brush away from your gums（齿龈）, too.
Spend at least three minutes each time you brush. Play a song you like to help pass the time.
Get a new toothbrush every three months. When you buy your tooth brush, be sure it has soft bristles（鬃毛）.
● Learn how to floss your teeth.
Flossing is a very important way to keep your teeth healthy. Food may hide in places where a toothbrush cannot get to, like the space between the teeth. Flossing can help get rid of it. Carefully move the floss between two teeth, up and down. You need to floss your teeth at least once a day.
● Have good eating habits.
You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay（腐朽）. Eating sugar before you go to bed can make things even worse. Eat lots of fruit and vegetables and drink water instead of soda.
小题1: is helpful to your teeth.| A．Eating fruit and vegetables | B．Eating sweet snacks | | C．Eating sugar | D．Drinking soda |
小题2: Which is the right way of brushing the teeth?| A．We should brush our teeth once a day. | | B．We should keep our toothbrush away from our gums. | | C．When we brush our teeth, at least three minutes is needed. | | D．Brush our teeth before breakfast. |
小题3: From the passage, do you know how to floss the teeth?| A．Go to see a dentist. | B．Fix a floss on the teeth. | | C．Move the floss between two teeth. | D．Chew the floss in the mouth. |
小题4:Which of the following is NOT true ?| A．Flossing can help get ride of the food that hides between two teeth. | | B．Healthy teeth can help you look more beautiful. | | C．We don’t have to brush our teeth if we eat a lot of fruit and vegetables. | | D．Your toothbrush should be changed every three months. |
小题5: The best title for the passage is .| A．How to floss your teeth. | | B．How to have good eating habits. | | C．How to brush your teeth. | | D．How to take care of your teeth. |
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Everybody wants to be healthy. Everybody knows food is very important. There are many healthy foods. You can have more bananas, apples, oranges, tomatoes and lettuce because fruits and vegetables are good for you. But don’t eat too much chocolate. It’s not healthy food. Healthy food can make you strong and happy. Remember there is an old saying, “An apple a day keeps a doctor away.” Sports can also keep you healthy. Get up early and do sports every day. Don’t be lazy! You will be healthy and happy
小题1: Which is right? _____________
A. Everybody is healthy B. We want to be healthy C. We are important
小题2: What are healthy foods? _________________
A. Fruits and vegetables B. bananas, apples and chocolate C. Fruits and chocolate
小题3: Why are healthy foods good for you? ________________
A. They make you happy. B. They make you grow strong.
C. They make you strong and happy.
小题4:“An apple a day keeps a doctor away!” means ______________.
A. the doctor goes away when he sees an apple
B. the doctor runs away when you give him an apple
C. you eat an apple every day and you can be healthy.
小题5: What keep you healthy?
A. Fruits and vegetables B. Healthy foods and sports C. Healthy foods |
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