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理工类-概括大意(2月23日)_职称英语网校

发布时间:2016-03-17 来源:环球网校 发布人:wyznl

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概括大意与完成句子

Hurricanes (龙卷风)

Did you know that before 1950, hurricanes had no names? They were simply given numbers. The first names were simply Alpha, Bravo, Charlie, etc. but in 1953, females names were given because of the unpredictability(不可预知) factor of the storms. In 1979, realizing the sexist(性别歧视的) nature of such names, the lists were expanded to include both men and women.

Hurricanes and typhoons(台风) are the same things. If they form in the Atlantic, we call these strong storms hurricanes, from the West Indian word hurricane, meaning "big wind." And if they are Pacific storms, they are called typhoons from the Chinese taifun, meaning “great wind." To be classified as a hurricane, the storm must have maximum winds of at least 75 mph. These storms are big, many hundreds of miles in diameter.

Hurricanes get their power from water vapor as it gives out its stored-up energy. All water vapor gives out heat as it condenses(凝结) from a gaseous state to a liquid state over fixed points on the equator(赤道). To make a hurricane, you must have extremely wet, warm air, the kind of air that can only be found in tropical region.

Scientists have determined that the heat given out in the process of water condensation can be as high as 95 billion kilowatts per hour. In just one day alone, the storm can produce more energy than many industrialized nations need in an entire year! The problem is that we don't know how to make sure such great energy work for us.

Predicting the path of a hurricane is one of the most difficult tasks for forecasters. It moves at a typical speed of 15 mph. But not always. Some storms may race at twice this speed, then suddenly stop and remain in the same location for several days. It can be maddening(发疯的) if you live in a coastal area that may be hit.

The biggest advance in early detection is continuous watch from weather satellites. With these, we can see the storms form and track them fully, from birth to death. While they can still kill people and destroy property, hurricanes will never surprise any nation again.

1、Paragraph 1_________

A、A Short History of Naming Hurricanes

B、Harnessing the Hurricane Energy

C、Difficulty in Forecasting the Course of a Hurricane

D、Huge Energy Stored in a Hurricane

E、Forecasting a Hurricane through Satellite Watching

F、Different Names for the Same Things

【正确答案】 A

【答案解析】 该段中names反复出现,所以names是文章中的核心词,借助段首句和段未句的句意判断答案为A。

2、Paragraph 2_________

A、A Short History of Naming Hurricanes

B、Harnessing the Hurricane Energy

C、Difficulty in Forecasting the Course of a Hurricane

D、Huge Energy Stored in a Hurricane

E、Forecasting a Hurricane through Satellite Watching

F、Different Names for the Same Things

【正确答案】 F

【答案解析】 除了选项F以外,其余选项中的核心词(如:harness, forecast, store, satellite)在文章中均没有出现。

3、Paragraph 4_________

A、A Short History of Naming Hurricanes

B、Harnessing the Hurricane Energy

C、Difficulty in Forecasting the Course of a Hurricane

D、Huge Energy Stored in a Hurricane

E、Forecasting a Hurricane through Satellite Watching

F、Different Names for the Same Things

【正确答案】 D

【答案解析】 该段落中“能量”一词频繁出现,所以该词是该段的中心词,借助此可以判断答案为D和B为可能答案。再借助段首句和段未句的句意判断答案为D。

4、Paragraph 5_________

A、A Short History of Naming Hurricanes

B、Harnessing the Hurricane Energy

C、Difficulty in Forecasting the Course of a Hurricane

D、Huge Energy Stored in a Hurricane

E、Forecasting a Hurricane through Satellite Watching

F、Different Names for the Same Things

【正确答案】 C

【答案解析】 段首句中就出现了“困难,预测”,所以被选项中C和E可能是答案选项,而E中的“卫星”在该段落中根本没有出现,所以判断C是答案。

5、Both male and female names are used for hurricanes in consideration of _________.

A、the timely(及时的) discovery

B、convenience

C、sex equality

D、its connection with humans

E、the huge power

F、its uncertainty

【正确答案】 C

【答案解析】 依靠原文(利用(male, female) names作为答案线索词)中第一段的最后一句判断答案为C(与性别有关)。

6、Using weather satellites can ensure _________ of hurricanes.

A、the timely(及时的) discovery

B、convenience

C、sex equality

D、its connection with humans

E、the huge power

F、its uncertainty

【正确答案】 A

【答案解析】 该题可直接借助搭配句意判断答案。也可借助原文(satellite作为答案线索词:第6段第2句)确认答案。

7、Scientists cannot accurately predict the course of a hurricane due to _________.

A、the timely(及时的) discovery

B、convenience

C、sex equality

D、its connection with humans

E、the huge power

F、its uncertainty

【正确答案】 F

【答案解析】 借助原文中的(scientist和predict作为答案线索词)第3句确认答案为F。

8、Energy specialists may be interested in _________ of hurricanes.

A、the timely(及时的) discovery

B、convenience

C、sex equality

D、its connection with humans

E、the huge power

F、its uncertainty

【正确答案】 E

【答案解析】 可直接借助搭配句意确认答案范围为E和F。上面一题答案是F,本题只能选E。



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