阅读下面的短文，判断下列句子是否与短文内容相符，符合的写（A），不符合的写（B）。
Beidou is China's first global navigation satellite system （全球卫星导航系统）. More than 120 countries and regions are using the Beidou system.
It started its full﹣scale （全面的） work on July 31，2020. With as many as 59 satellites，Beidou has "bright eyes". These satellites fly around the earth. They can "see" rivers，forests and mountains. They can "see" houses and schools on the earth. Of course，they can "see" you，too! From space，they can tell where you are on the ground，with a difference of no more than 10 meters.
Beidou can help people find the way，even when it's on the dark sea. It can look for mines （矿产） in deep mountains. It can give orders to driverless cars. Last summer，when Chinese people fought the flood （洪水） in the South，Beidou helped measure （测量） the rise and fall of the flood water.
What's more，when people are in danger and there is no mobile phone signal （信号） ，they can use Beidou to send a 1，200﹣word message to ask for help.
All in all，Beidou is there to keep us safe and make our life convenient.
（1）Beidou's satellites fly around the moon.
（2）Everything can be seen by Beidou except you.
（3）People can find the way with the help of Beidou.
（4）Beidou can't look for mines but can help people fight floods.
（5）If your mobile phone has no signal，you can use Beidou to ask for help.
Have you ever heard an echo of your voice?
An echo is a reflected(反射)sound. Stand in a very large, empty hall with nothing on the walls. Then shout. The sounds you make will hit the walls and come back to you. The walls reflect the sounds. These reflected sounds are called “echoes”.
We can use reflected sound to make sound travel farther. Hold a watch about fifty centimeters from your ear. You cannot hear it. The sound of the watch travels a short way in all directions. It does not travel as far as your ear. You can make it travel to your ear by using a roll of cardboard(纸板筒).
Make the roll of cardboard about fifty centimeters long. Put one end over your ear and hold the watch at the other. Now you can hear the watch because the sound has not gone in all directions. It is reflected down the roll to your ear.
A megaphone(喇叭筒)works in the same way. It makes sound travel farther. It reflects the sound into a beam which can travel a long way. In the ship, the sailor uses the megaphone to make his voice travel. Without the megaphone, his voice cannot travel far.
We use reflected sound in many ways. We use it to measure the depth of the sea, for example. Among the animals, bats and whales use reflected sound to tell them where they are and what things are near them.What is called “echo”?
| A．Very loud voices. |
| B．Very loud voices that are made by man. |
| C．Very loud voices that are made by animals. |
| D．The sound that is made by man or animals comes back from some place. |
We can hear our echoes if we.
| A．shout in a small room |
| B．shout in a large house full of things |
| C．shout in narrow valleys(山谷) |
| D．shout in the open air |
Which is the right order of hearing our echo in a very large, empty hall?
a. We hear the reflected sound
b. The sound returns to us
c. The sound hits the walls
d. We make a sound
| A．c, b, a, d | B．c, a, b, d | C．d, c, b, a | D．d, b, c, a |
From the text we learn that __________ .
| A．reflected sound is useful only to blind people |
| B．people haven’t made use of reflected sound yet |
| C．bats use reflected sound to fly and get food |
| D．whales don’t use reflected sound as they live in the sea |
If you haven’t got a megaphone, ____ will help you to make your voice travel farther.
| A．a long piece of wood | B．a roll of cardboard |
| C．a thin thread | D．a long piece of silk |
There are many things we need to know, but we do not learn them at school. For example, if we want to use our money wisely, we need to shop carefully. We need to know how to compare(比较) the prices of the things in different shops. We also need to know how to make the best choice when we shop.
Knowing how to make such choices is a life skill, and we need to practice it in our daily life.
Supermarket W
Business hours: 6:00 a.m – 10:30 p.m.
Eggs (1 kilo): ￡ 6.50
Apples(1 kilo): ￡3.80
Pork ( 1 kilo): ￡18.20
Tomatoes (1 kilo): ￡1.58
Environment: Very good
Service: Good
Supermarket M
Business hours: 5:30 a.m – 10:30 p.m.
Eggs (1 kilo): ￡6.60
Apples(1 kilo): ￡3.96
Pork ( 1 kilo): ￡18.20
Tomatoes (1 kilo): ￡1.50
Environment: Very good
Service: Good
Supermarket Y
Business hours:6:00 a.m – 10:00 p.m.
Eggs (1 kilo): ￡ 6.20
Apples(1 kilo): ￡3.30
Pork ( 1 kilo): ￡17.20
Tomatoes(1kilo):￡1.30
Environment: Need improving
Service: Just so-so
Supermarket T
Business hours: 6:00 a.m – 9:30 p.m.
Eggs (1 kilo): ￡6.90
Apples(1 kilo): ￡4.00
Pork ( 1 kilo): ￡18.60
Tomatoes (1 kilo): ￡1.60
Environment: Just so-so
Service: BadWhich supermarket has the longest Business Hours?
| A．Supermarket W. | B．Supermarket T. |
| C．Supermarket Y. | D．Supermarket M. |
The price of the pork in ___________ is the same as that in ___________.
| A．Supermarket W; Supermarket M |
| B．Supermarket Y; Supermarket T |
| C．Supermarket W; Supermarket Y |
| D．Supermarket M; Supermarket T |
If you want to spend the least money on eggs, which supermarket will you go to?
| A．Supermarket W. | B．Supermarket M. |
| C．Supermarket Y. | D．Supermarket T. |
From above, which supermarket may have the fewest shoppers?
| A．Supermarket W. | B．Supermarket T. |
| C．Supermarket M. | D．Supermarket Y. |
What may be the reason if a shopper usually shops in Supermarket Y?
| A．The Environment. | B．The Service. |
| C．The Business hours. | D．The Price. |
阅读短文，从方框中选择适当的句子还原到短文中，使短文意思完整．
Scientists think that many or most animals can't see colors．．To find out if dogs could see colors，scientists gave dogs food every time they played certain piece of music．
only when they heard this piece of music．They did not get ready to eat when they heard other pieces of music．
Then the scientists gave the dogs food every time they showed them a certain color．The dogs got ready to eat when they saw thi s color．．Again the dogs got ready to eat．The colors were al l the same to them．
，however．For example if we put food in a red box and do this every day．A monkey wiIi always go to the red box to get the food．
if we then put food in a blue box．
Every country has its own way of cooking．Ameri can people have their own way of cooking，don't they?Most people in the United states like fast food，but if you think that American people don't 1 ike cooking，you are wrong．It's true that most Americans eat fast food for their breakfast and lunch，but they also think cooking is interesting．Parents see the importance of teaching their children how to cook，and most Americans say that home—cooked meals are the best．
Americans have their own way of cooking．For example，baking(烘烤)is the most popular way of cooking in America．Most American families have ovens(烤炉)．American cooks(厨师)pay attention to(注意)the balance of food．When planning a big meal，they try to cook meat，a few vegetab]es，some bread and sweet food．They also like to make the meal look beautiful．There are so many kinds of colorful foods，so the meal is healthy and look beautiful，too．Most Americans ______．
| A．don't like cooking | B．cook food in the morning |
| C．1ike home-cooked meals | D．1ike having a picnic |
What does the sentence“It's true that most Americans eat fast food for their breakfast and lunch”mean?It means______．
| A．they don't eat dinner | B．they like eating fast food |
| C．they only eat fast food | D．they can't cook |
______is the most popular way of cooking jn the USA．
A．Baking B．Cutting C．Frying D．BoilingHow does an American cook balance different kinds of food?
| A．He cooks a lot of meat． |
| B．He cooks meat，regetables，bread and sweet food for a big meal． |
| C．He makes the food delicious． |
| D．He cooks a lot of vegetables． |
Which is TRUE according to the passage?
| A．The meal looks beautiful because the foods are in different colors. |
| B．American people only cook at home in the evening． |
| C．American parents don't like to teach their children to cook． |
| D．Most people in the United states don't 1ike fast food at a11． |
Everybody can suffer from stress(压力). No matter what your age is, you can feel stressed out by things that are happening in your life. Teenagers, however, have many more opportunities(机会) to get stressed than people in any other age group. Being a teenager is hard. You are not a child any more, but you are not an adult, even though you have to deal with some very grown-up problems and decisions. Families can be one of the biggest causes of stress, such as problems with parents arguing at home, or problems with brothers and sisters. Teenagers also have a lot of stress from school, either from their teachers or from their friends. Some teenagers also feel stressed about choosing their education after high school. Getting a place at university(大学) can be very difficult and some cannot afford to go to university. The stress about getting a job when finishing school is hard for some teenagers. There are so many young people finishing school and not enough jobs for them. Sadly, there is nothing we can do to remove these causes of stress from the 1ives of teenagers, but you can learn the best way to deal with it. Talking to people is one of the best ways to deal with stress. It may sound simple(简单), but it is true. A problem shared is a problem halved(减半).
根据短文内容判断正误，正确的写(A）、错误的写（B）。Being a teenager is often difficult because adults often make them feel stressed.
Families can add to the stress a teenager might experience by asking them to go to university.
When many teenagers finish school ,they may worry about becoming an adult.
Finding a job after finishing school can be difficult because there is a lot of competition for jobs.
There are many things we can do to deal with stress.