大学英语四级听力篇章专项强化真题试卷5
短文理解
1.(A)
A. Tour Ecuador’s Andes Mountains.
B. They grew wheat and corn on a small farm.
C. Purchase a plot to build a home on.
D. Send their children to school.
解析：短文中提到，Mbakwa一家有能力送孩子上学，每年仅这一项开销就是2，800美元，故答案为D。
2.(D)
A. Tour Ecuador’s Andes Mountains.
B. Earn an annual income of $2,800.
C. Purchase a plot to build a home on.
D. Send their children to school.
解析：短文中提到，Mbakwa一家有能力送孩子上学，每年仅这一项开销就是2，800美元，故答案为D。
3.(A)
A. The achievements of the Trickle Up Program.
B. A new worldwide economic revolution.
C. Different forms of assistance to the needy.
D. The life of poor people in developing countries.
解析：短文分别介绍了发展中国家几户贫困家庭的生活变迁，最后指出，这都归功于纽约人格伦和米尔德丽德.力特创立的Trickle Up项目，这一项目通过发放救助金这一形式已为全世界超过13万贫困人口提供了帮助，由此可知，文章主要讲述的是Trickle Up项目的成果，故答案为A。
4.(C)
A. It has to be removed in time by a dentist.
B. They are vitally important to our life.
C. It contains many nerves and blood vessels.
D. It is a sticky and colorless film on the teeth.
解析：短文中提到，牙斑是牙齿表面一层粘粘的无色层，故答案为D。
5.(D)
A. It has to be removed in time by a dentist.
B. It is a rare oral disease among old people.
C. It contains many nerves and blood vessels.
D. It is a sticky and colorless film on the teeth.
解析：短文中提到，牙斑是牙齿表面一层粘粘的无色层，故答案为D。
6.(A)
A. It can change into acids causing damage to their outer covering.
B. It greatly reduces their resistance to the attacks of bacteria.
C. It makes their nerves and blood vessels more sensitive to acid food.
D. It combines with food particles to form a film on their surface.
解析：短文中指出，牙斑上的细菌生活在糖分中，会使糖变成酸，从而破坏牙齿表面那层比较坚硬的壳由此可知，糖会变成酸，破坏牙齿表层，故答案为A。
7.(B)
A. Food particles.
B. Gum disease.
C. Unhealthy living habits.
D. Chemical erosion.
解析：短文末尾部分指出，除了牙齿受损外，还会出现牙龈疾病，细菌先是侵害牙龈，接下来会使骨头受损收缩，从而导致牙齿脱落由此可知，牙龈疾病是成人牙齿掉落的主要原因，故答案为B。
8.(D)
A. Air traffic conditions.
B. Solar energy.
C. Road conditions.
D. New traffic rules.
解析：短文中提到，在未来几年，不是有关道路和高速公路交通状况的电台报道，取而代之的是空中交通堵塞的新闻报道，故答案为A。
9.(A)
A. Air traffic conditions.
B. Traffic jams on highways.
C. Road conditions.
D. New traffic rules.
解析：短文中提到，在未来几年，不是有关道路和高速公路交通状况的电台报道，取而代之的是空中交通堵塞的新闻报道，故答案为A。
10.(B)
A. Go through a health check.
B. Carry little luggage.
C. Arrive early for boarding.
D. Undergo security checks.
解析：短文中提到，未来可能可以去月球上旅行，你会被告知携带的行李不得超过10盎司，可见携带的行李非常少，故答案为B。
11.(C)
A. Avoid eating any food.
B. At a shopping center.
C. Wash his hands thoroughly.
D. Practice eating a pie quickly.
解析：短文中提到，参加比赛时，应保证空腹状态，这与A“避免吃任何食物”意思一致，故答案为A。
12.(A)
A. Avoid eating any food.
B. Prepare the right type of pie to eat.
C. Wash his hands thoroughly.
D. Practice eating a pie quickly.
解析：短文中提到，参加比赛时，应保证空腹状态，这与A“避免吃任何食物”意思一致，故答案为A。
13.(B)
A. On the table.
B. Behind his back.
C. Under his bottom.
D. On his lap.
解析：短文中提到，在吃馅饼的过程中，如果伸手帮忙，则会被取消参赛资格如果你的手被绑到背后，你就不会被诱惑去用手帮忙由此可知，在比赛过程中，手最好放在背后，故答案为B。
14.(B)
A. Looking sideways to see how fast your neighbor eats.
B. Eating from the outside toward the middle.
C
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