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is made of a number of different plates(极块). For example, at San Francisco the
Pacific Plate which is moving towards the northwest meets the North American
Plate. The Pacific Plate is moving very slowly-at 5. 3 centimetres a year.
Sometimes these two plates stop and do not move for years. Then suddenly, they
jump and an earthquake is felt. As the movement of these plates,West America
near the sea has always been a bad place for earthquakes. When the 1906
earthquake happened, the Pacific Plate jumped 5-6 metres to the north.
We cannot stop earthquakes, but we can do things to make sure they don't
destroy(毁坏) the whole of cities. First,it is not a good idea to build houses
along the lines, where two of the earth's plates join together.Second, if you think
there may be an earthquake, it is better to build houses on rock not on sand.
Third, you must make the houses as strong as possible. Weak buildings will fall
down in an earthquake,but strong ones may stay up.
B. the inside of the earth is made of different plates
C. the outside of the earth is made of lots of different plates
D. the earth is a plate
B. when one plate pulls another plate
C. when one plate jumps over another plate
D. when two plates don't move
Plate
B. San Francisco stands near the Pacific
C. San Francisco is near the sea
D. the city of San Francisco wasn't built very well
B. earthquakes
C. building houses along the earthquake line
D. building weak houses at San Francisco
B. should build houses on rock not on sand if we think there may be an
earthquake
C. must make the houses as strong as possible
D. A, B and C
memory. It lasts less than 30 seconds. However, you don't look in the phone book for a friend's number. You know it. This is a long-term memory. Your long-term memory has everything that you remember.
Why do you forget something? Because you do not learn it in the beginning.This is the main reason
for forgetting. For example, you meet some new people, and you forget their names.You hear the name,
but you do not learn them. Then you forget them.
B. Less than thirty seconds.
C. Sixty seconds.
D. For a day or two.
B. We don't learn what we hear or see.
C. We do not hear or see what we learn.
D. We are ill sometimes.
B. It has a listing of friend's names.
C. You use it when you want to find a phone number you don't know.
D. You use it to buy a phone.
B. Learn them.
C. Just ask them their names again.
D. Spell their names again and again.
B. try our best to learn
C. depend on our short-term memory
D. catch our long-term memory
Can plant eat people? Probably not. But there are many plants that eat meat. Some of them are big, and they can eat small animals. One famous meat- eating plant is the Venus flytrap(捕蝇草).
The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the pages of the book.. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly(苍蝇) touches one of the hairs, the leaf closes very quickly. Then the fly can’t go out. In about half an hour, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly. Why do plants do it? Most plants get what they need from the sun, the air, and the ground. In some places, the ground is very poor. It doesn’t have all the important things, especially nitrogen(氮). Animal meat has a lot of nitrogen. So some plants eat meat to get what they need. Let’s hope that some of the bigger plants don’t get the same idea.
根据短文内容判断。
1. The Venus flytrap grows in wet parts of the United States.
2. The Venus flytrap is a kind of plant.
3. The underlined word “presses” probably means(挤、压) in Chinese.
4. In the world, many animals eat plants but plants never eat animals.
5. From the passage, we know that not only animals eat plants, but also some plants eat animals.
Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big. And they can eat small animals. One famous meat-eating plant is the Venus flytrap(捕蝇草).
The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.
Why do plants do it? Most plants get what they need from the sun, the air, and the ground. In some places, the ground is very poor. It doesn't have all these important things, especially nitrogen(氮). Animal meat has a lot of nitrogen, so some plants eat meat to get what they need. Let's hope that some of the bigger plants don't get the same idea!
1.The Venus flytrap is a kind of _________.
A.plant B.animal C.food D.meat
2.The underlined word "presses" probably means _________ in Chinese.
A.挤压 B.关上 C.打开 D.松开
3.Why do some plants eat animal meat?
A.Because plants are dangerous to animals.
B.Because animals are dangerous to plants.
C.Because plants want to get what they need from animal meat.
D.Because plants want to protect themselves against animals.
查看习题详情和答案>>
The Venus flytrap is a very strange plant.It grows in dry parts of the United States.Its leaves are like the pages of a book.They can open and close very quickly.Inside the leaves,there are three small hairs.If a fly touches one of the hairs,the leaf closes quickly.The fly cannot get out.In about half an hour,the leaf presses the fly until it is dead.Then,the plant covers the fly.Slowly,the plant eats the fly.
Why do plants do it? Most plants get what they need from the sun,the air,and the ground.In some places,the ground is very poor.It doesn’t have all these important things,
especially nitrogen(氮).Animal meat has a lot of nitrogen,so some plants eat meat to get what they need.Let’s hope that some of the bigger plants don’t get the same idea !
【小题1】The Venus flytrap is a kind of_________.
| A.plant | B.animal | C.food | D.meat |
| A.most parts of the world | B.some parts of Africa |
| C.dry parts of the United States | D.wet parts of England |
| A.all plants can eat people | B.all plants can eat animals |
| C.some plants can eat people | D.some plants can eat animals |
| A.挤压 | B.关上 | C.打开 | D.松开 |
| A.plants are dangerous to animals |
| B.animals are dangerous to plants |
| C.plants want to get what they need from animal me |
| D.plants want to protect themselves against animals |