题目内容
We each have a memory. That’s why we can still remember things after a long time. Some people have very good memories and they can easily learn many things by heart, but some people can only remember things when they say or do them again and again. Many of the great men of the world have got surprising memories.
A good memory is a great help in learning a language. Everybody learns his mother language when he is a small child. He hears the sounds, remembers them and then he learns to speak. Some children are living with their parents in foreign countries. They can learn two languages as easily as one because they hear, remember and speak two languages every day. In school it is not so easy to learn a foreign language because the pupils have so little time for it, and they are busy with other subjects, too.
But your memory will become better and better when you do more and more exercises.
1. Some people can easily learn many things by heart because ________.
A.they always sleep very well B.they often eat good food
C.they read a lot of books D.they have very good memories
2. Before a child can speak, he must ________.
A.read and write B.make sentences
C.hear and remember the sounds D.think hard
3. In school the pupils can’t learn a foreign language well because________ .
A.they have no good memories B.they have no recorders
C.they have too much time for it D.they are busy with other subjects
4. Your memory will become better and better ________.
A.if you have plenty of good food
B.if you do more and more exercises
C.if you do morning exercises every day
D.if you get up early
【小题1】D
【小题2】C
【小题3】D
【小题4】B
Section B
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
A.additional |
B.producing |
C.regular |
D.predicted E. identified |
E atmosphere G. matched H. reducing I. carried J. increase
Forests in the northern half of the globe could be growing faster now than they were 200 years ago as a result of climate change, according to a study of trees in eastern America. The trees appear to have faster growth rates due to longer growing seasons and higher concentrations (浓度) of carbon dioxide in the ___41___.
Geoffrey Parker, a scientist at the Smithsonian Environmental Research Centre in Edgewater. Maryland, said that the increase ha the rate of growth was unexpected and might be ___42___ to the higher temperatures and longer growing seasons documented in the region. The growth may also be influenced by the significant ___43___ in atmospheric CO2, he said.
"We made a list of reasons these forests could be growing faster and then excluded half of them," Dr. Parker said. Their study suggests that northern forests may become increasingly important in ___44___ the influence of man-made CO2 on the climate.
Dr. Parker and his colleagues have ___45___ out a detailed record of the trees on a(n) ___46___ basis since 1987. They calculated that due to the global warming the forest is producing ___47___ tons of wood each year.
The scientists ___48___ the land with trees at different stages of growth and found that both young and old trees were showing increased growth rate. More than 90 per cent of the tree groups had grown by between two and four times faster than the scientists had ___49___ from estimates of the long-term rates of growth.