四级模拟练习(二)
窗体顶端
四级练习（二）考试时间：  90 分钟          满分：  73 分
Part 1 Skimming and Scanning (Multiple Choice + Blank Filling)   
Directions: Read the following passage and then answer the questions. For questions 1-7, choose the best answer from the four choices marked A, B, C and D. For questions 8-10, complete the sentences with the information given in the passage.
Questions 1 to 10 are based on the same passage or dialog.
Engineers of the Woods
In the forests of North America, where the winters are often long and cold, small lakes can be found along the streams. Sometimes these lakes are natural, sometimes they are man-made, and sometimes they are the constructions of beavers (海狸). You can tell a beaver lake by its dam. To make the dams, the beavers lay sticks and branches on top of each other to form an effective barrier against the water of the stream. Near the dam the beavers lay sticks and branches. Usually this barrier is similar to a small island in a lake. This is the house where a beaver family spends the winter, protecting themselves from enemies and from the cold. The beavers are able to keep dry in the center of the house, which is above water level.
The beavers work hard to make their house. They cut down trees, gather branches and put them together with mud. Most of the summer is spent on this kind of work, but in winter the beavers' work pays off. Their house protects them from bears as well as the cold.
The beaver is related to animals such as rats and mice.The beaver, however, is much bigger than his relatives. An adult beaver may weigh more than 50 pounds, and his body may be about three feet long. His tail will add ten to twelve more inches to his length. His back feet are webbed, which help him swim rapidly. His front feet are similar to a pair of strong hands. With them he can carry wood and stones. His eyes, nose and ears are small, but he has two huge front teeth. These teeth are always growing, and he must keep them sharp by constant use. The teeth of an adult beaver are yellow from the bark of trees that he bites.
Men attach great value to the beaver because beavers can be sold to make expensive clothing. Beavers have almost disappeared from Europe because trappers (设阱捕兽者) have killed so many of them. Beavers might easily have become extinct in America, too, but laws were passed to protect them before they were all killed.
The beaver likes family life, and lives with the same mate all his life.Several young—usually two to five—are born every year. The little beavers stay with their parents for two years before mating and setting out on their own. They share the work of building dams, constructing homes and raising the young.
When there are too many beavers in one place, some of them will group together in another place. They usually choose a spot near some fairly deep lake or river, where there are trees. The bark of trees is eaten as food. Then the wood is used for building.
Sometimes the lodges are built on the bank of the water, but usually they are built on an island in the water. If there is no island already there, the beavers make one by piling sticks and mud on the bed of the river until the top is a few inches above the level of the water. The top is carpeted with small pieces of wood leaves. A roof of sticks and lots of mud is then built over this "floor". Food for the winter is taken to the lodge before the weather gets too cold. Some of it—the larger pieces—is stored on the bottom of the lake or river, near the entrance to a tunnel leading up to the lodge. There are sometimes several such entrances, under the surface of the water. Wood that is kept under water may be stuck in the mud, or weighted down with stones.
Beavers prefer to work at night. One beaver, on a single night, can cut down a tree that is eight inches around. After cutting down the tree, the beaver cuts the trunk into pieces that can be carried. He uses these as the base for the dam. A small dam may be enlarged after several years, in order to flood a large surface and provide living space for more beavers. Under favorable conditions, a dam may last for a hundred years or more. Naturally, other animals use these dams as bridges, forcing the beavers to keep the dams in good repair. The dams must be strong enough to hold up against the pressure of ice in spring and sometimes, holes are made by the beavers, after heavy rains, to allow excess water to run off.
Another type of work beavers do is canal digging. When they have used up the good trees near their home, they must bring more wood from farther away. To accomplish this, they may dig a canal (运河) to float the trees to the place where they are needed.
Beaver dams help people because they prevent floods and bring water to farms. It is fortunate that these animals have not been allowed to disappear completely.
1.
The stick and branch dams made by beavers are similar to ________________.
A. houses where people spend the winter
B. small islands in a lake
C. barriers against the water of the stream
D. dams that are man-made
2.
Beavers spend most of the summer ________________.
A. hiding from bears
B. making their house
C. keeping cold
D. looking for mice and rats
3.
To help it swim quickly, a beaver has ________________.
A. small ears
B. strong front feet
C. a long tail
D. webbed back feet
4.
________________ have (has) protected beavers from becoming extinct.
A. Family life
B. Europe
C. Laws
D. Trappers
5.
Beavers usually choose to live ________________.
金昌软件A. in one place
B. near some deep lakes or rivers with food
C. near some deep lakes or rivers with trees
D. near the dams of rivers
6.
On the bottom of the lake or river, beavers store ________________.
A. large pieces of food
B. small pieces of wood leaves
C. wood and stones
D. sticks and lots of mud
7.
In only one night, a beaver can ________________.
A. build a small dam
B. cut down a tree
C. repair a dam
D. make more living space
8.
After heavy rains, beavers make holes in the dam to let excess water .
9.
Beavers dig canals to  from the places farther away to the places where they are needed.
10.
Preventing floods and bringing water to farms are two ways that beaver dams .
 
Part 2 Understanding Short Conversations   
(Each item: 1)
Directions:In this section you'll hear some short conversations. Listen carefully and choose the best answer to the questions you hear.
11
A. Bill took drugs.
B. Bill exercised a lot.
C. Bill grew new muscles.
D. Bill had a new coach.
12
A. He was able to exercise every day after work.
B. He cannot count the ways his life has changed.
C. Others have asked him how he's gotten healthy.
D. People have changed their attitude toward him.
13
A. Healthy vegetables are very expensive for some people.
B. The woman doesn't have a good excuse not to exercise.
C. Running outside is the best way for a person to exercise.
D. Healthy living isn't something to make excuses for.
14
A. Taking a new pill.
B. Going on a diet.
C. Listening to news reports.
D. Replacing exercise.
15
A. 60%.
B. 30%.
C. 70%.
D. 50%.
魔鬼城16
A. Mother and son.
B. Brother and sister.
C. Father and daughter.
D. Husband and wife.
17
A. He started a new program.
B. He stopped exercising.
C. He feels very tired.
D. He was ill last month.
18
A. Begin swimming.
B. Start weight lifting.
公共卫生事件分几级C. Look at herself differently.
D. Eat better to lose weight.
 
Part 3 Understanding Long Conversations   
Directions:In this section you'll hear a long conversation or conversations. Listen carefully and choose the best answer to the questions you hear.
Questions 19 to 23 are based on the same passage or dialog.
什么叫创业板
19
A. How water-dense foods can help you lose weight.
B. What fruits and vegetables have in common.
C. Why one should eat foods with fewer calories.
D. Where people get most of their calories.
20
A. They are rich in taste.
B. They give calories for energy.
C. They contain many calories.
D. They contain a lot of water.
21
A. A sandwich.
B. A bowl of soup.
C. A salad.
D. Some fruit.
22
A. Eating only when hungry.
B. Eating foods low in calories.
C. Getting one's water from food.
D. Filling up one's stomach with water.
23
A. They are convenient.
B. They are low in calories.
C. They cost more.
D. They leave you hungry.
Questions 24 to 28 are based on the same passage or dialog.
24
A. Boyfriend and girlfriend.
B. Husband and wife.
C. Father and daughter.
D. Mother and son.
25
A. Find girlfriends easily.
B. Talk to the woman quite often.
C. Exercise according to a program.
D. Sing the song All You Need is Love.
26
A. He's always feeling sorry for himself.
B. He's too fat to be attractive for girls.
C. He's always too busy exercising.
D. He won't go anywhere with a girlfriend.
27
A. Finding love.
B. Losing weight.
C. Exercising.
D. Working.
28
A. Finding love is not as important as losing weight.
B. Feeling sorry for yourself will not help you find love.
C. Being thin and exercising are important in finding love.
D. Getting a girlfriend is impossible for fat people.
 
Part 4 Understanding Passages   
Directions:In this section you'll hear a passage or passages. Listen carefully and choose the best answer to the questions you hear.
Questions 29 to 33 are based on the same passage or dialog.
29
A. How to beat a bad mood.
B. How to do physical exercise.
C. How to talk bad moods out.
D. How to be involved in physical exercise.
怪盗基德令人惊异的空中漫步
30
A. To have enough rest.
B. To do some housework.
C. To take drugs.
D. To talk it out.
31
A. They are the most effective.
B. They are useful but aren't best.
C. They are only what doctors like.
D. They are ineffective.
32
A. Swimming.
B. Doing housework.
C. Cooking.
D. Washing.
33
A. Three to five times a week.
B. Twenty minutes a week.
C. No less than three times a week.
D. No more than five times a week.
Questions 34 to 38 are based on the same passage or dialog.
34
A. Lower cost for buying bicycles.
B. Cars being left at home these days.
C. More knowledge about bicycles.
D. The need to keep the environment clean.
35
A. People want to save time.
B. Bicycles are not convenient.
C. People trust themselves with cars.
D. People are sure of their driving skills.
36
A. They need to leave their cars at home.
B. They need to have more knowledge about bicycles.
C. They need to do more physical exercise.
D. They need to live in the center of the city.
37
蛙泳姿势
A. 80%.
B. 8%.
C. 18%.
D. 10%.
38
A. The choice between bicycles and cars.
B. Exercises and bicycles.
C. Environmental problems.
D. Short trips and long trips.
 

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。