基础训练篇（16）
We must have water to live. __ 1________the water we use is clean and fresh, it will make us ill. The animals __ 2________ (live) in and around lakes and rivers must also have clean water. Our rivers and lakes supply most of our water. The clear, blue water found by the first American settlers has changed. Many of our water sources are now __ 3________. They are filled __ 4________ dirt and waste which cannot be cleaned out. In many places, water is not safe for us to use.
Lake Erie was __ 5________ a beautiful lake. Now it has been called “a dying lake”. Waste from nearby homes and factories has been dumped into __ 6________. Fish can no longer live in much of its polluted water. George Washington once called the Potomac “__ 7________ finest river in the world”. Now its water is no longer blue. Instead, it is soupy green. Suds(肥皂泡沫), from detergents（洗涤剂；洗衣粉） used to wash clothes, often cover the water of our rivers.
Water cannot __8___________(make) in a factory. Once water is polluted, it is __ 9________ to make it clean and safe again. We must learn to take care of the water __ 10_______ we now have.
基础训练篇（15）
As well as reaching the right audience with the right technique, advertisers must also place their ads in the right medium. Obviously, cost will play __(1)______ big part in this decision. Television adverts are expensive to make __(2)_____to show. You have to be a big corporation with a big budget to afford television ads. Advertisements in newspapers, on the other hand, are __(3)______cheaper.
As well as worrying about the expense, advertisers must also consider _____(4)_ media are most appropriate for their product and which their target audience is most likely to see or hear. __(5)_______most cars have radios, ads broadcast via radio can reach a lot of drivers very __(6)______(easy). For this reason, ______(7)_would be appropriate to use radio to advertise goods and services relating to cars. _(8)______, it would be no use __(9)_ _____(advertise) products on radio if the ad relies on visual effects. Television adverts are great for generating emotional responses to a product, but magazines and newspapers can have __(10)_ ____details.
基础训练篇（14）
Until recently daydreaming was viewed as a waste of time. Or it __1_____________(consider) an unhealthy escape from real life and its duties. But now some people are taking a fresh look at daydreaming. Some think it may be a very __2______________ (health) thing to do. Some researchers are finding that daydreaming may be important to mental health. Daydreaming, they tell us, __3__________(be) a good means of relaxation. But its benefits go 4 _____ this. A number of psychologists have conducted experiments and have reached some __5__ ______ (surprise) conclusions.
Dr. Joan T. Freyberg has concluded that daydreaming contributes __6____intellectual growth. It also improves 7 ____ (concentrate), attention span, and the ability to get 8 ____ with others. Industrialist Henry J. Kaiser believed that much of his success was due to the positive use of daydreaming. Florence Nightingale dreamed of becoming a nurse. The young Thomas Edison pictured 9 __ __ as an inventor. For these notable achievers, it appears 10 their daydreams came true. Dr. Harry Emerson Fosdick offered this advice: “hold a picture of yourself… in your mind’s eye, and you will be drawn toward it. Picture yourself vividly as defeated and that alone will make victory impossible.
基础训练篇（13）
Xiao Mao is a primary school student and he enjoys (1)_____ (draw) very much.
One day, he went to the small woods not far (2)___________ town to draw from nature, carrying a drawing board. He was glad to find a tree living (3)____________ the rest had been cut down. “Let me start work at (4)___________” he thought and began to set up his (5)_____________.
Just then a strong young man came (6)_________a big axe and got down to (7)___________ (cut) the tree. Soon he cut it down and pulled it away.
When Xiao Mao got (8)__________ and turned back to draw, he found the tree had (9)________________ (disappear).
“Dear me ! Where on earth is the tree ? ” Xiao Mao wondered, very (10) ______________(disappoint).
基础训练篇（12）
We all know that computers have played and (1)__________ play a very important part (2)___________ various fields.
In personal lives, computers can do lots of work. It can carry (3)___________ people’s instructions. In agriculture, computers are used (4)_____________ control the (5)__________(grow) conditions of vegetables and other plants. In transportation(交通运输), computers can work out the best distance (6)__________ trains and operate the trains instead (7)____________ human beings. In the fields of education, health and scientific research, computers are important, (8)___________. People use them to store information (9)______________ records.
Because of the computers, life is easier and (10)________ convenient for people.
基础训练篇（11）
Mrs. Wilson, the wife of a rich man, (1) some of her friends to lunch. She was trying a new way to cook fish and she was very pleased with (2) when the fish was ready. As the fish was very hot, she put it near the open window to (3) _____ for a few minutes. Five minutes later, when she came back (4) it, she was surprised to find the neighbor’s cat at the fish. She was in time to stop the cat before it was too (5). _ .That afternoon every one enjoyed the fish. They talked and laughed (6) _ four o’clock.
After the guests left, Mrs. Wilson felt tired but happy. She was sitting down in a chair near the window (7) _____ __ she saw the neighbor’s cat dead in her garden. She was sure the fish was bad. What (8) _ _ _______ happen to her friends? She at once telephoned the family doctor for help. The doctor wanted each guest (9) _____ meet him. Once again Mrs. Wilson was alone in her chair still tired (10) _ _ not longer happy. Just then the telephone rang. It was her neighbor, “Oh, Mrs. Wilson,” he cried.” My cat is dead. She was killed by someone in a car and put in your garden …”
