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　　2020年9月四级听力第一套题目解析

　　新东方兰州宋佳芮邸明珠

　　News Report One

　　A NASA satellite orbiting over Portugal took photographs that reveal the effects of pollution from ships. One of the photos shows the thin film of clouds above the brilliant blue of North Atlantic cut by white lines of thicker clouds that look like scars. [1] NASA officials explained those thicker clouds are signs of ship traffic blow. when ships power their ways through the ocean, they pump exhausts into the atmosphere, just as cars do. And those massive amounts of particles can cause clouds to form. Get enough of those particles in one place, as from the exhausts of the ship, and they can lead to the creation of new clouds easily visible from space, these clouds can be huge. Some of them stretch hundreds of kilometers from end to end, NASA officials said. [2] It’s likely that these sorts of clouds are having some effect over global climate, according to NASA officials. But scientists are not yet sure what effects it has.

　　Q1: What has caused the thick clouds in the photos taken by a NASA satellite?

　　【答案】ship traffic in the Atlantic

　　【解析】本题考查文章中因果逻辑这一重要细节，答案关键句为NASA officials explained those thicker clouds are signs of ship traffic below. NASA官员解释说，这些较厚的云层是下面船只往来的迹象。

　　Q2: What do NASA officials think about the thick clouds?

　　【答案】They may be affecting the world’s climate.

　　【解析】本题考查引言细节，答案关键句为It s likely that these sorts of clouds are having some effect on the global climate, 这些云可能对全球气候产生了一些影响，world’s 和global 进行了同义替换。

　　News Report Two

　　Staff at a suburban supermarket in Melbourne say they feel unsafe at work after security guards were removed. This came after a series of physical attacks and verbal abuse by customers. [3] More than 50 workers at the store have signed a letter calling for a permanent security guard following a series of incidents, including a customer threatening to attack a supervisor with a knife. "A security worker had guarded the store each night from 7pm until 12am, but that had stopped suddenly on Monday,” employees said. One worker said an angry customer had thrown a chicken at his head after complaining about how long she had waited to be served. Another worker said the lack of protection at the store made her feel uncomfortable at work. [4] However, the spokesman of the supermarket said the store had taken strong action in response to incidents, "We have found very few instances of bad customer behavior at our store in the past year. In the rare cases, we have seen bad behavior, we have taken strong action in response, including banning a customer from the store."

　　Q3: For what purpose, did the staff at the supermarket in Melbourne sign a letter?

　　【答案】To call for a permanent security guard.

　　【解析】本题考查同学们归纳总结能力，答案关键句为More than 50 workers at the store have signed a letter calling for a permanent security guard allowing a series of incidents. 大家呼吁设立一名永久的保安。

　　Q4: What did the spokesman of the supermarket say, regarding the employees’ demand?

　　【答案】it had already taken strong action.

　　【解析】本题考查转折逻辑，答案关键句为However, the spokesman of the supermarket said the store had taken strong action in response to incidents.该超市的发言人表示，该超市已经采取了强有力的措施来应对这些事件。