The doctor asked him___________ the amount of salt in his diet.

A. to reduce B. reduce

C. reduced D. reducing

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語法填空。

If the population of the Earth keeps on increasing at its present rate, there will eventually not be enough resources 1.(leave) to support life on the planet. By the middle of the 26st century, if present trends continue, we 2.（use）up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on the earth will make 3.necessary for us to look for open space somewhere else. But 4. of the other planets in our solar system are capable of supporting life at present. One possible solution 5. the problem, 6., has recently been suggested by an American scientist, Professor Carl Sagan. Sagan believes 7. before the Earth’s resources are 8.(complete) exhausted it will be possible to change the atmosphere of Venus and therefore create a new world almost as large as the Earth9..The difficulty is that Venus is much hotter than the Earth. 10., there is only a tiny amount of water there.

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_____the activities might seem childish, actually they require a lot of strength and determination.

A. Since B. Although

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閱讀下列短文，從每題所給的A、B、C和D項(xiàng)中，選出最佳選項(xiàng)，并在答題卡上將該項(xiàng)涂黑。

There have been many great inventions that changed the way we live.The first great invention was one that is still very important today—the wheel.This made it easier to carry heavy things and to travel long distances.For hundreds of years after that there were few inventions that had as much effect as the wheel.Then in the early 1800's the world started to change.There was little unknown land left in the world.People did not have to explore much anymore.They began to work instead to make life better.In the second half of the 19th century many great inventions were made.Among them were the camera, the electric light and the radio.These all became a big part of our life today.

The first part of the 20th century saw more great inventions.The helicopter in 1909.Movies with sound in 1926.The computer in 1928.And jet planes in 1930.This was also a time when a new material was first made.Nylon came out in 1935.It changed the kind of clothes people wear.The middle part of the 20th century brought new ways to help people get over disease.They worked very well.They made people healthier and let them live longer lives.By the 1960's most people could expect to live to be at least 60.By this time most people had a very good life.

Of course new inventions continued to be made.But man now had a desire to explore again.The world was known to man but the stars were not.Man began looking for ways to go into space.Russia made the first step.Then the United States took a step.Since then other countries, including China and Japan, have made their steps into space.In 1969 man took his biggest step away from the earth.Americans first walked on the moon.This is certainly just a beginning though.

New inventions will someday allow us to do things we have never yet dreamed of.

1.Camera was invented after ________.

A．1850 B．1950

C．1800 D．1900

2.Why did the world start to change in the early 1800's?

A．Because there were few inventions that had as much effect as the wheel for hundreds of years.

B．Because there was little unknown land left in the world.

C．Because people did not have to explore much anymore.

D．Because people began to work to make life better instead of exploring unknown world.

3.In Paragraph 2, the word “They” in the sentence “They worked very well” refers to ________.

A．helicopters, computers, jet planes, nylon

B．new ways to help people get over disease

C．new materials

D．people

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A．Man wanted to move to other stars.

B．Other countries wanted to catch up with America.

C．Other countries wanted to follow Russia.

D．Going into space is a dream for man to realize.

5.The possible title for the passage might be ________.

A．Great Inventions of the 20th Century

B．How Wheels, Cameras and Computers Were Invented

C．People's Attitudes Towards Inventions

D．Great Inventions Influence Our Way of Living

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Montreal is the second largest French-speaking city in the world, Paris _____ the largest.

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— How’s your tour around the North Lake? Is it beautiful?

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Nothing could stop Dad. After he was put on disability for a bad back, he bought a small farm in the country, just enough to grow food for the family. He planted vegetables, fruit trees and even kept bees for honey.

And every week he cleaned Old Man McColgin’s chicken house in exchange for manure. The smell really burned the inside of your nose. When we complained about the terrible smell, Dad said the stronger the manure, the healthier the crops, and he was right. For example, just one of his cantaloupes filled the entire house with its sweet smell, and the taste was even sweeter.

As the vegetables started coming in, Dad threw himself into cooking. One day, armed with a basket of vegetables, he announced he was going to make stew. Dad pulled out a pressure cooker and filled it up with cabbages, eggplants, potatoes, corns, onions and carrots. For about half an hour, the pressure built and the vegetables cooked. Finally, Dad turned off the stove, the pot began to cool and the pressure relief valve sprayed out a cloud of steam. If we thought Dad's pile of chicken manure was bad, this was 10 times worse. When Dad took off the lid, the smell nearly knocked us out.

Dad carried the pot out and we opened doors and windows to air out the house. Just how bad was it? The neighbors came out of their houses to see if we had a gas leak!

Determined, Dad filled our plates with steaming stew and passed them around it didn't look that bad, and after the first wave had shut down my ability to smell, it didn't offend the nose so much, edible, and we drank up every last drop of soup!

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B．It contains honey and vegetables.

C．It looks very wonderful.

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