四级模拟考卷(3)

4.According to the Duke University scientists, when does the shark stretch its collagen fibers to the greatest extent? ［A］When moving its tail rapidly。

［B］When finding its preys。

［C］When staying without any movement。

［D］When bending its body in swimming。

5.Why is the area just under the shark’s collagen fibers similar to a belted radial tire?

［A］Because it is also full of blood pressure。

［B］Because it is also filled of air pressure。

［C］Because it is also inflated by pressure。

［D］Because it also can be used again and again。

6.A laminar flow is formed when a fish swims________________。

［A］slowly through the water［B］rapidly through the water

［C］against the current［D］at the fastest speed in water

7.Consuming the equal amount of energy as a slug does, a mouse can travelas long as it______________。

［A］one twelfth times.［B］the same.［C］12 times.［D］1.2 times。

8.A shark finds its prey by________________。

9.According to the passage, _______________can be compared to the string of a bow for both of them store energy when stretched。

10.When the shark detects an important food source, __________________________take place。

Part III Listening Comprehension (35 minutes) Section A

Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked

[A] , [B] , [C] and [D] , and decided which is the best answer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.

注意：此部分试题请在答题卡2上作答

11. A) She expected more people at her party.

B) She enjoys entertaining small children.

C) She threw a surprise party for her friend

D) She has always enjoyed great popularity.

12. A) They are not used to living in a cold place.

B) They feel lucky to live in Florida.

C) They are going to have a holiday.

D) They have not booked their air tickets yet.

13. A) He was pleased to get the medal. C) He used to be a firefighter.

B) He was very courageous. D) He was accused of causing a fire.

14. A) Make a profitable investment. C) Get parts for the machine from Japan.

B) Buy a new washing machine D) Have the old washing machine fixed.

15. A) He is pleased with his exciting new job.

B) He finds the huge workload unbearable.

C) He finds his office much too big for him.