Haste makes waste. Deal with each question separately, one . A. at one time B. in time C. on time D. at a time 题目和参考答案——青夏教育精英家教网—

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Haste (= Hurry) makes waste. Deal with each question separately, one ______.

A. at one time B. in time C. on time D. at a time

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We often think insects to be harmless. This is partly true. Many an insect are harmful. Flies carry diseases. Others insects carry diseases, too. Farmers are at war with insects most the time. Hunger insects kill crops in the fields Farmers spray the field as to get rid of these insects. Does this means that all insects are harmful? No. Many are of great helpful to man. Bees make honey. With bees and other insects, many trees would have not fruit. Silkworms make silk. Some insects eat other insects that kill fruit trees.

. Nowadays there are more and more beggars in streets, __________ money from passers-by.

A. asked B. asking for, C. asked for D. asking

While scientists are worried that humans are causing higher temperatures on the Earth, a Maryland man, Ace, thinks we can save the world by spraying（喷射）huge amounts of water into the air.

Ace told the McClatchy News Service that at least 1,000 places should be chosen to spray water. The water would be sprayed between 20 and 200 feet into the air. Thousands of tons of seawater would be sprayed for years at a time.

The 1,000 sites would be picked after more studies. They would be mostly in the Northern Hemisphere(北半球). Ace says he would avoid tropical（热带的）areas of the globe. He says water turns to rain too quickly in these areas for his plan to work.

The water would be changed into vapor. That process requires heat. The water vapor would rise above the Earth. The water vapor would form clouds. The clouds would help in several ways. They would cool the Earth by reflecting sunlight. They would later turn into rains. The rains would provide another way of cooling the Earth.

Ace’s plan has gotten some support from a limited scientific study. Kenneth Caldeira is a climate scientist. He works at the Carnegie Institution’s Department of Global Ecology at Stanford University in California. Caldeira tested some of the Ace’s figures on a computer program. The computer model is used by top scientists to study global climate change. The model showed that the plan might work.

“More tests are planned in 2009. Ideas like Ace’s should be considered carefully and with an open mind,” Calderira said. “Every brilliant（卓越的）invention in the history of technology looked a little bit mad when first put forward.”

65． What’s the purpose of Ace’s plan?

A. To reduce air pollution.

B. To make summer cooler.

C. To offer dry areas more rain.

D. To solve the problem of global warming.

66． According to Ace’s plan,___________.

A. planes would be used to spray water.

B. it would be best to spray water on rainy days.

C. seawater would be sprayed high into the sky

D.1,000 sites in the Southern Hemisphere would be chosen.

67． Why wouldn’t Ace spray water in tropical areas?

A. Water is changed into vapor too quickly.

B. Water turns to rain too quickly.

C. It is hard for vapor to form clouds.

D. It is bad for local plants to have too much rain.

68. It seems that Caldeira ____________.

A. takes Ace’s plan seriously

B. thinks Ace’s idea too crazy

C. doesn’t believe the computer’s result

D. agrees to carry out Ace’s plan right away

I don’t think Peter is too young to take care of the pet dog ________.

A．properly B．correctly C．exactly D．actively

He traveled to many mountain villages and saw many poor children out of school. This experience his life.

A．would change B．had changed C．was to change D．was changing

The sun was shining brightly, ________ everything there ______ more beautiful.

A. making, look B. to make, looked

C. and made, looking D. and making, be looked

The children ran out of the house to welcome their daddy _____ they saw him come back home.

A. the moment B. at the moment C. for the moment D. not for a moment

The government has taken some measures to solve the shortage of electricity, but it may be some time ________ we have enough power.

A. since B. after C. unless D. before

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