Section C

Directions：In this section，you will hear three passages.At the end of each passage，you will hear some questions.Both the passage and the questions will be spoken only once.After you hear a question，you must choose the best answer from the four choices marked A），B），C）and D）. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.

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Passage One

Questions 16 to 18 are based on the passage you have just heard.

16.A）Waving one’s hand. C）Holding up the forefinger.

B）Nodding one’s head. D）Turning the right thumb down.

17.A）Looking away from them. C）Waving or pointing to them.

B）Forming a circle with fingers. D）Bowing one’s head to them.

18.A）Showing the sole of one’s foot to a guest. C）Looking one’s superior in the eye.

B）Keeping one’s arms folded while talking. D）Using a lot of gestures during a conversation.

Passage Two

Questions 19 to 21 are based on the passage you have just heard.

19.A）They grew wheat and corn on a small farm.

B）They shared a small flat with their relatives.

C）The children walked to school on dirt roads.

D）They had to beg for food after the harvest.

20.A）Send their children to school.

B）Earn an annual income of$2，800.

C）Tour Ecuador’s Andes Mountains.

D）Purchase a plot to build a home on.

21.A）A new worldwide economic revolution.

B）Different forms of assistance to the needy.

C）The achievements of the Trickle Up Program.

D）The life of poor people in developing countries.

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Passage Three

Questions 22 to 25 are based on the passage you have just heard.

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22.A）They are highly sensitive to cold.

B）They are a living part of our body.

C）They are a chief source of our pain.

D）They are vitally important to our life.

23.A）It has to be removed in time by a dentist.

B）It contains many nerves and blood vessels.

C）It is a sticky and colorless film on the teeth.

D）It is a rare oral disease among old people.

24.A）It makes their nerves and blood vessels more sensitive to acid food.

B）It greatly reduces their resistance to the attacks of bacteria.

C）It combines with food particles to form a film on their surface.

D）It can change into acids causing damage to their outer covering.

25.A）Gum disease.

B）Unhealthy living habits.

C）Food particles.

D）Chemical erosion.