Question

Some scientists say that animals in the ocean are increasingly threatened（威脅） by noise pollution caused by human beings. The noise that affects（影響）sea animals comes from a number of human activities. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.

Decibels(分貝) measured in water are different from those measured（測量）on land. A noise of one hundred and twenty decibels on land caused pain to human ears. In water, a decibel level of one hundred and ninety-five would have the same effect.

Some scientists have planned to set a noise limit of one hundred and twenty decibels in oceans. They have found that noises at that level can frighten and confuse(混淆) whales.

A team of American and Canadian scientists discovered that loud noises can seriously hurt some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales’ ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected.

Many researchers whose work depends on ocean sounds disagree to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial（工業(yè)的）and scientific research. Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect（懷疑） that noise is a greater danger than they believed. They want to stop noises from harming creatures in the ocean.

1.According to the passage, which of the following is increasingly dangerous to sea animals?

A. The man-made noises. B. The noises made by themselves.

C. The sound of earthquakes. D. The sound of the ice-breaking.

2.Which of the following is discussed in the second paragraph(段落)?

A. Different places with different types of noises.

B. The human ears have feelings to all types of noises.

C. The same noise measured differently on land and in the ocean.

D. The ocean animal’s reaction to noises.

3. As to the influence of noises on whales, which of the following statements is TRUE?

A. They are deaf because of noises.

B. Noises at a certain level may hurt them.

C. They are easily confused by noises.

D. Noises will limit their ability to reproduce.

4. We can know from the passage that many scientists think that the noise limit(限制) of one hundred twenty decibels would __________.

A. stop them from doing their research work

B. benefit them a lot in their research work

C. do good to their health

D. increase the industrial output（產(chǎn)量）

5.According to the passage, what will scientists most probably do in the future?

A. They will try their best to make no noise.

B. They will work hard to cut down natural noises.

C. They will study the effect of different noises.

D. They will protect animals from harmful noises.

 

Answer 1

1.A

2.C

3.B

4.A

5.D

【解析】

試題分析：本文介紹了海洋里的動物正在受人類引起的噪音的威脅�？茖W家計劃制定在海洋噪音的限制為120分貝以下，許多科學家認為這個分貝的限制將意味著結(jié)束重要的工業(yè)和科學研究，然而他們懷疑噪音的影響遠比他們認為的要危險。因此他們想要阻止噪音傷害海洋里的生物。

1.

2.概括歸納題。根據(jù)Decibels(分貝) measured in water are different from those measured（測量）on land.可知第二段主要介紹了同一種噪音在水里的測量和在陸地上不同。故選C。

3.細節(jié)理解題。根據(jù)They have found that noises at that level can frighten and confuse(混淆) whales.可知某種程度上的噪音可能讓鯨魚害怕和混淆，使鯨魚受傷。故選B。

4.細節(jié)理解題。根據(jù)They say such a limit would mean an end to important industrial（工業(yè)的）and scientific research.可知許多科學家認為這個分貝的限制將意味著結(jié)束重要的工業(yè)和科學研究，故選A。

5.推理判斷題。根據(jù)They want to stop noises from harming creatures in the ocean.可知科學家們想要阻止噪音傷害海洋里的生物。故推斷在將來他們將保護海洋里的動物不受噪音的傷害。故選D。

考點：環(huán)保類短文閱讀。