________, I saw and old friend of mine, whom I haven’t seen for years.

A. Turning around   B. Turning back    C. Turning away   D. Turning up

Then you usually lie there just ______ the ceiling, thinking about everything that could go wrong.

A. glancing at                     B. watching at          C. glaring at     D. staring at

 We need a more capable leader, _____with a strong will and as well as a good sense of humor.

A. who    B. that   C. one   D. which

LONDON: What could possibly be wrong with planting trees? The advantages are obvious; they  firm the soil, soak up (摄取) extra water and take carbon dioxide (二氧化碳) out of the atmosphere.

However, it now turns out that planting trees could add to global warming.

Tree roots do a great job of keeping soil firmly on the ground and out of the wind’s power. The problem is that some of those dust clouds play an important part in soaking up carbon dioxide.

Huge dust storms blow out over the oceans from dry parts of North Africa and central Asia. Tons of dust are lifted and left as a thin film over the ocean surface. The dust fuels oceanic life.

Dust from China is carried east and left in the Pacific Ocean. If a tree-planting programme there is successful and the dust supply reduced, the net result may be that less carbon dioxide gets locked away in the ocean.

Andy Ridgwell, an environmental scientist from the University of East Anglia, has spent the past few years studying dust and says his work “shows clearly the complexity of the system and the importance of not tinkering(粗劣地修补) with it without understanding the results. For this reason there is the need to focus(集中) on cutting carbon dioxide giving off rather than monkeying (瞎弄) about with the land surface.”

An American scientist, Robert Jackson, has shown that when native grassland areas are invaded(侵入) by trees, carbon is lost from the soil. “We are studying why the soil carbon disappears, but one theory is that trees do a lot more of their growing above ground compared to grasses, so less carbon goes directly into the soil from trees, ” says Jackson.

In wet areas of the world, the gain from trees absorbing carbon dioxide above ground seems to be outweighed(超过) by the loss of carbon from the soil below ground. Countries that plan to combat global warming by planting trees may have to think again.

Solutions(解决办法) to environmental problems are often more complex than they first appear, and understanding the Earth’s climate is a very great challenge.

60．People usually hold the opinion that________

       A．huge dust storms can destroy carbon dioxide

       B．huge dust storms can destroy the oceans on the earth

       C．huge dust storms can’t do anything beneficial for man

       D．planting trees is the only way to control huge dust storms

61．Andy Ridgwell, the environmental scientist, believes that ________ .

       A．dust plays a more important part than trees

       B．trees shouldn’t have been planted in dry places

       C．carbon dioxide is harmful to everything on the earth

       D．environmental problems are more complex than expected

62．Robert Jackson’s experiment proves that________   .

       A．grassland areas should be covered by forests

       B．trees hold more carbon than grass

       C．carbon can turn grass into dust

       D．less carbon can make trees grow faster

63．The underlined word “combat” in the last paragraph means_______ .

       A．learn about      B．fight against     C．live with   D．give up 

As we know, most of the material things in our daily life have to be bought with money. But money is not all powerful. Money can't buy many things such as time and true love. There are 24 hours in a day. Sometimes when we are very happy, we wish that the period of happiness would last longer. But no matter what we do, or how much money we are willing to pay, we cannot make a day last longer than 24 hours. On the other hand, when we are unhappy, money cannot make the unhappy time pass away more quickly. True love is another thing which money cannot buy. Suppose we have someone who really loves us very much. Once he dies, he can give us no more love. Can our money raise him from death and make him love us as before? Here we can see very clearly that money cannot buy us love. Money can buy us diamond things, beautiful clothes, but never time and love. So money, after all, is not all powerful.

72. According to the passage, it is quite impossible for you to buy ______.

A. true friendship          B. real diamond            C. a large house     D. an expensive car

73. Which of the sentences expresses the main idea of this passage?

A. Money cannot buy time and love.                  B. Money is not powerful at all.

C. Money can buy people material things.           D. Money doesn't mean everything.

74.Through the passage the writer wants to tell people not to ????????????______.

A. make money      B. waste money             C. save money              D. worship(崇拜) money

75. From the passage we can see that in our life, besides something material, we need something ______.

A. spiritual       B. beautiful           C. lovely        D. useful

---We are late because we took _______ wrong road.

   ---You should be careful ______ next time.

       A. the…the                          B. a…the                      C. the…/               D. /…/

–what did you do after school yesterday?  --I_____ basketball with my friends.

   A. play        B. played        C. will play         D. am playing

--- Parker, you can speak Chinese, ________you?

   ---Yes, but only a little

   A. won’t       B. mustn’t       C. needn’t      D. can’t

Frank’s marriage to the billionaire’s daughter got him through his hardest time, ________years later he wondered what he could have done differently.

       A．therefore B．and   C．however   D．but

Generally speaking, ______ according to the directions, the drug has no side effect.

A. when taking          B. when taken         C. when to take       D. when to be taken