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    We always think that it's OK for us to leave our plants home during our vacation as plants won't scream like pets, right?

    A recent study done by a group of scientists at the Tel Aviv University has discovered that some plants will scream when they are under stress.

    The research was carried out on tomato plants and tobacco plants by cutting their stems(茎) and depriving(剥夺) them of water. A microphone was placed 10cm away from them. When their stems were cut, the plants started "screaming" between 20 and 100 kilohertz, and the scientists guess that this scream is probably meant to warn other plants nearby.

    When the tomato plants' stems were cut, 25 ultrasonic( 超声的) pain sounds were recorded in an hour, and at the same time, 15 ultrasonic pain sounds were recorded from the tobacco plants. When they were deprived of water, the tomato plants recorded even more pain sounds with 35 pain sounds in an hour while the tobacco plants recorded about 11 pain sounds.

    The plants also acted differently to different kinds of stresses. For example, the tobacco plants gave out a stronger "scream"when they were deprived of water than when their stems were cut. But plants that were in no immediate(立刻的) danger gave out less than one ultrasonic sound per hour.

    The group of scientists said that plants are not as quiet as we had always thought, but in fact their voices are so high﹣pitched that we just can't hear them.

    Last year, another study has found out that plants feel pain when they are touched or hurt and they will give of a terrible smell.

(1)What have the group of scientists at the Tel Aviv University discovered?  

A. Some plants under stress will scream.

B. Plants in danger scream to warn others.

C. Some plants under stress feel energetic.

D. Plants in danger give off a sweet smell.

(2)What was the microphone underlined in paragraph 3 used for?  

A. Cutting the stems of plants.

B. Depriving plants of water.

C. Collecting ultrasonic sounds.

D. Testing different stresses.

(3)How many ultrasonic pain sounds did the tobacco plants give out in an hour when deprived of water?  

A. 11.

B. 15.

C. 25.

D. 35.

(4)What can we learn from the passage?  

A. Tomato plants acted the same under different stresses.

B. Tobacco plants gave off a smell when they were safe.

C. Plants not in immediate danger screamed most weakly.

D. Plants that felt pain screamed loudly for people to hear.

科目 英语   题型 阅读理解   难度 中等
知识点: 判断推理 逸闻趣事类阅读 科普知识类阅读 文中细节
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Kitesurfing as a water sport began in the 1980s, but didn’t get popular until the end of last century. It is also known as kiteboarding, and in some European countries as flysurfing. Kitesurfing works through wind power (动力) by using a large kite to pull a rider on the water at high speed.
At first, kitesurfing was a difficult and dangerous sport. Now it is becoming easier and safer because of the safer kite design. For an able and strong person, kitesurfing can be a very fun, exciting sport, just like skating on the water with a feeling of flying. It has become more and more popular.
Compared with other water sports, kitesurfing is easier to learn. A beginner can understand how to operate the kite with 5-10 hours of training. And anybody aged from 13 to 65 can learn. It is not expensive to get the equipment (装备) for kitesurfing, which costs $1,000 to $2,500. Training lessons range from $200 to $500 for two or three hours. With the development of its equipment progress (进步), kitesurfing is becoming even safer. After some training, you can enjoy its excitement and challenging feeling.
With the rising popularity of kitesurfing, most major seaside cities have kitesurfing clubs. In China, Xiamen is the only place that has the kitesurfing club, which provides professional kitesurfing training and equipments.
Kitesurfing has a history of about years.

A.30 B.50 C.100 D.130

is mentioned in the passage as the power of kitesurfing.

A.Water B.Wind C.The sun D.The kite

The underlined word “range” in the third paragraph means “” in Chinese.

A.在……范围内变动 B.按……顺序排列
C.向……方向延伸 D.根据……归类

The most important reason for the popularity of kitesurfing is that .

A.its price is getting lower and lower
B.more and more people are enjoying its excitement
C.its equipment progress makes it easier and safer
D.all people can learn and take part in it

The main idea of this passage is about.

A.how to operate kitesurfing
B.the progress of kitesurfing equipment
C.the history of kitesurfing in China
D.the development of kitesurfing

“Whoosh!” The ball flew into the net and the game was finally over. This game had gone into overtime (加时赛) twice. Until the last goal was scored, no one had any idea which team would win.
Dave felt so bad because his team had lost. He liked playing soccer, but he liked winning even more. Now the two teams should have a picnic together. Dave did not want to eat lunch with the other team. The other team would probably brag (显摆) by talking about how they won the game.
Dave went to the locker room (更衣室) to change out of his soccer clothes. There the coach talked to the team about what they had done well. They also talked about how they could improve. Then everybody walked outside towards the picnic table.
One of the players from the other team was standing near the picnic table. He handed Dave a paper plate. “Hi, I’m Miguel,” he said.
“Hi,” Dave replied, looking down at the ground.
“You played great,” Miguel said. “I didn’t think we were going to win.”
Dave was surprised. Miguel was not bragging at all.
“Thanks,” Dave said to Miguel. “You played great, too.”
Dave felt happy. Dave promised himself that the next time his team won a game, he would not brag to the other team. It was wonderful to win, but it was even more important to be a good winner.
What happened first in the story?

A.Dave met Miguel.
B.The boys ate lunch together.
C.Dave went to the locker room.
D.The soccer game ended.

Which sentence best describes Dave?

A.He didn’t like to lose. B.He got angry a lot.
C.He got tired easily. D.He was not friendly to others.

What happened in the locker room?

A.Dave and Miguel talked.
B.Dave and his team ate lunch.
C.The coach talked to the team.
D.Dave put on his soccer clothes.

What was Dave’s problem?

A.He was too tired to eat.
B.He didn’t want to eat with the winning team.
C.He didn’t like Miguel.
D.He didn’t play soccer as well as his teammates.

Based on the story, what would probably happen in the future?

A.Miguel would brag the next time his team won.
B.Dave would not brag the next time his team won.
C.Dave’s team would win the next soccer game.
D.Miguel’s team would not play against Dave’s team again.

October is getting closer and it also means that the year of 2014 is coming to an end. “Hooray! It’s a holiday!” While you are thinking of putting textbooks aside and playing video games, let’s take a look at what children in other continents usually do during their holidays.
Children in America don’t have much homework to do. They keep themselves busy by playing camp games. A parent says, “My daughter Shirley usually attends different camps. We don’t ask her to spend plenty of time on maths problems or spelling tests.”
Children in Australia take partin activities on over twenty different themes (主题). They learn painting, dancing, singing, history, culture and so on. Parents can accompany their kids to enjoy the learning process and to build a closer relationship with them.
These are what African kids do: build a boat, have a camel race, make a drum and make a rag (碎布) football. Don’t you think it is interesting that kids in other places have no idea how to make a drum, but kids in Africa do?
Plan your holiday well and try what you want to try. Make a good plan and you will have a lot of fun.
Where does Shirley come from?

A.Asia. B.America.
C.Australia. D.Africa.

What does the underlined word “accompany” mean in Chinese?

A.提醒 B.监视 C.陪伴 D.排斥

According to the passage, only kids in Africa know how to ______.

A.play camp games B.do spelling tests C.build a boat D.make a drum

Which of the following is TRUE?

A.The passage was written before October.
B.Kids in America are good at maths.
C.Kids in Australia spend much time on homework.
D.Kids in Africa don’t play football.

What is the purpose of this passage?

A.To advise kids to make holiday plans.
B.To introduce some good holiday camps.
C.To encourage kids to make friends with parents.
D.To show the importance of doing homework during holidays.

We say that a person has good manners if he or she is polite, kind and helpful to others. Everyone likes a person with good manners. But no one likes a person with bad or careless manners. Yes, but what are good manners? How do I know what to do and what not to do?
Here are some examples of the things that a well-mannered person does or does not do.
He never laughs at people when they are in trouble. Instead, he tries to help them. When people are waiting for a bus, he stands in line and takes his turn. He never pushes to the front of the line. On the bus, he offers his seat to an older person or a woman with a child in the arms. If he gets in someone’s way, he says “excuse me”. He says “please” when he makes a request (请求), and he says “thank you” when he receives something. He doesn’t stop other people when they are talking. He does not speak with his mouth full of food when he is eating.
People agree that a well-mannered person is really a person.

A.polite B.kind
C.helpful D.polite, kind and helpful

Saying “please” and “thank you” is for a well-mannered person.

A.useless
B.a little useful
C.hypocritical (虚伪的)
D.important and necessary

A person with good manners thinks of .

A.others before himself B.himself before others
C.no one but himself D.others as well as himself

If you want to be well-mannered, .

A.you laugh at people when they are in trouble
B.it’s all right to speak with your mouth full of food
C.you should stop someone when he is talking
D.you can only speak after someone else has finished talking

Malls(购物中心) are popular places for Americans to go to. Some people spend so much time at malls that they are called mall rats. Mall rats shop until they visit hundreds of stores.
People like malls for many reasons. They feel safe because malls have police stations. Parking is usually free. And the temperature inside is always fine. The newest malls have beautiful rest places with waterfalls and large green trees.
The largest mall in the United States is the Mall of America in Minnesota. It covers 4. 2 million square feet. It has 350 stores, eight nightclubs, and a large park! There are parking spaces for 12, 750cars. About 750,000 people shop there very week.
The first indoor mall in the United States was built in 1965 in Edina, Minnesota. People love doing all their shopping in one place. More malls are built around the country. Now malls are town centers where people can come to do many things. They shop, and of course, they also eat in food courts(美食街) that have food from all over the world. They see films at theaters. Some people even get their exercise by doing the new sport of “mall walking”. Others go to malls to meet friends.
In some malls, people can see a doctor and even go to the church. In other words, people can do almost everything in malls. Now people can live in their favorite shopping centers in fact.
Those Americans are called mall rats.

A.who eat in food courts at malls
B.who spend so much time at malls
C.who enjoy themselves at malls
D.who do all their shopping at malls

According to the passage, Americans like doing shopping .

A.in one place B.in a quiet place
C.in a busy place D.in different places

What does the third paragraph mainly tell us?

A.People like to go to the mall.
B.The Mall of America is noisy.
C.When America had the first mall.
D.The Mall of America is very large.

Which statement is TRUE according to the passage?

A.People can see a doctor in some malls.
B.Parking is free in all the malls.
C.The malls are only in big cities.
D.The largest mall is in Hong Kong.

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