阅读下面短文,从短文后各题所给的A、B、C和D四个选项中,选出可以填入空白出的最佳选项。

It’s March 12th. Li Li and Lin Tao are digging on a hill nor far from their school. In China, people across the country plant trees_________on this day.

The idea of planting trees was first put forward in 1911 by Sun Zhongshan, the great_______ in China’s history. He said more trees were needed as a_________against flood(洪水)and drought. In 1915, April 5th was named as Tree Planting Day.Then, in 1979, the day_______to March 12th, to _______the date on which Sun Zhongshan died.

“Everyone has heard of the Great Wall of China,”says Li Li. “But have you heard of the Green Wall of China? That’s the biggest tree planting _______ of all. ”The Gobi Desert in the north of China was _______every year. So in 1978, a tree planting project was started to _______ Gobi spreading. The government and local farmers have been planting millions of trees to build a great green“wall” along the edge of the desert.

“Tree planting has become a tradition in China now,”says Lin Tao. “Almost everyone does it on March 12th. Many people also plant a tree on a _______ day. My parents planted a tree when started school. And my cousin planted _10__ on his wedding (婚礼 day. We do it for the environment and for ourselves.”

1.A. silently B. wisely C. completely D. actively

2.A. artist B. engineer C. pioneer D. musician

3.A. protection B. position C. preparation D. direction

4..A. taken B. decided C. changed D. given

5.A. value B. remember C. express D. admire

6.A. research B. survey C. project D. success

7.A. growing B. appearing C. losing D. happening

8.A. keep B. have C. help D. stop

9.A. different B. special C. basic D. simple

10.A. one B. that C. it D. this

On April 2, we said goodbye to Tiangong I, China's first space lab. According to the China Manned Space Agency(中国载人航天), Tiangong I re-entered the Earth's atmosphere(大气层)and some of its debris(碎片)fell into the South Pacific Ocean.

There are many spacecraft(宇宙飞船)that are still in orbit(轨道)above the Earth. After finishing their trips, they will all re-enter the Earth's atmosphere like Tiangong I.

There are two types of re-entries: controlled re-entry and uncontrolled re-entry.

Some satellites and manned spacecraft come back to the Earth in a controlled re-entry. Experts calculate(计算)the path of the falling spacecraft and its speed. They can guide the spacecraft to fall in a chosen area.

Some spacecraft may have problems while in space after a certain amount of time. These spacecraft come back in an uncontrolled re-entry. It is hard to tell when and where these spacecraft will fall until the last few hours. The US space station Skylab came back partially uncontrolled in 1979. Parts of the station fell in western Australia, but no one was hurt.

During re-entry, most of the spacecraft will burn up while passing through the Earth's atmosphere. Only a small amount of the debris will reach the ground. The debris typically ends up falling into the ocean, China Daily reported.

1.The debris from Tiangong 1 .

A.fell into the South Pacific Ocean B.fell in western Australia

C.fell in the central part of the US D.fell into the North Pacific Ocean

2.When the spacecraft finishes its trip, it will .

A.burn up and disappear B.speed up and fly back to the Earth

C.enter another orbit and stay in space D.re-enter the Earth's atmosphere

3.From the passage, we know there are types of re-entries.

A.one B.two C.three D.four

4.Which of the following is TRUE about the US space station Skylab?

A.It came back in a controlled re-entry.

B.Some people were hurt by its debris.

C.Parts of it fell in western Australia.

D.It was directed to fall into the ocean.

5.This story most probably comes from .

A.a story book B.a movie review C.a science magazine D.a government report

Do you have the experience of taking music lessons against your wishes?Perhaps you have complained about it because you thought it took you much playtime. But now you'd better thank your parents for their time and money spent on your musical training. A recent study suggests that music lessons can make children have better memories than their peers(同龄人).

The Canadian study showed that after one year of musical training,children did better on a memory test than those who didn't take music lessons.

The researchers made the children aged between 4 and 6 into two groups—one group of children took music lessons outside school,and the other didn't take any musical training. In one year,they took four tests in different times. The results showed brain development changes at least every four months.

The children taking music lessons not only did better in musical listening but also made faster progress in other ways,such as reading,writing,math and IQ.

People say music is the good medicine for a broken heart. Now it seems music can also help us to improve our memories. We are sure to find more and more in the wonderful world of music.

1.You'd better thank your parents for their time and money spent on your musical training because ______.

A.you get well after you take music lessons

B.you will make faster progress in study

C.music can help you to improve your memories

D.music can make you stronger than others

2.The researchers made one group of the children aged between 4 and 6 take music lessons for ______.

A.six months B.a year

C.two years D.three years

3.The Canadian study showed that brain development changes ______.

A.at least every four months

B.twice half a year

C.once a month

D.four times a year

4.According to the last paragraph,most people think music can make us ______.

A.happy B.worried C.confident D.sad

5.What does the passage mainly tell us?

A.How to become cleverer.

B.How to sing a song well.

C.What to find in the wonderful world of music.

D.Music does us much good.

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