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概括句意：

Hurricanes（龍卷風(fēng)）

1 Did you know that before 1950,hurricanes had no names? They were simply given numbers.The first names weresimply Alpha,Bravo,Charlie,etc.but in 1953,females names were givenbecause of the unpredictability（不可預(yù)知）factor of the storms.In 1979,realizing thesexist（性別歧視的）nature of such names,the listswere expanded to include both men and women.

2 Hurricanes and typhoons（臺(tái)風(fēng)）are the same things.If they formin the Atlantic,we call these strong storms hurricanes,from the West Indianword hurricane,meaning "big wind." And if they are Pacific storms,they are called typhoons from the Chinese taifun,meaning “great wind." Tobe classified as a hurricane,the storm must have maximum winds of at least 75mph.These storms are big,many hundreds of miles in diameter.

3 Hurricanes get their power fromwater vapor as it gives out its stored-up energy.All water vapor gives outheat as it condenses（凝結(jié)）from a gaseous state to a liquid state over fixed points on the equator（赤道）.To make a hurricane,you musthave extremely wet,warm air,the kind of air that can only be found intropical region.

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

5 Predicting the path of ahurricane is one of the most difficult tasks for forecasters.It moves at a typicalspeed of 15 mph.But not always.Some storms may race at twice this speed,thensuddenly stop and remain in the same location for several days.It can bemaddening（發(fā)瘋的）if you live in a coastal area that may behit.

6 The biggest advance in earlydetection is continuous watch from weather satellites.With these,we can seethe storms form and track them fully,from birth to death.While they can stillkill people and destroy property,hurricanes will never surprise any nationagain.

1.Paragraph 1_________

2.Paragraph 2_________

3.Paragraph 4_________

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

5.Both male and female names areused for hurricanes in consideration of _________.

6.Using weather satellites canensure _________ of hurricanes.

7.Scientists cannot accuratelypredict the course of a hurricane due to _________.

8.Energy specialists may beinterested in _________ of hurricanes.

A.the timely（及時(shí)的）discovery

B.convenience

C.sex equality

D.its connection with humans

E.the huge power

F.its uncertainty

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

正確答案：A

答案解析：該段中names反復(fù)出現(xiàn)，所以names是文章中的核心詞，借助段首句和段未句的句意判斷答案為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

正確答案：F

答案解析：除了選項(xiàng)F以外，其余選項(xiàng)中的核心詞（如：harness,forecast,store,satellite）在文章中均沒有出現(xiàn)。

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

正確答案：D

答案解析：該段落中“能量”一詞頻繁出現(xiàn)，所以該詞是該段的中心詞，借助此可以判斷答案為D和B為可能答案。再借助段首句和段未句的句意判斷答案為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

正確答案：C

答案解析：段首句中就出現(xiàn)了“困難，預(yù)測(cè)”，所以被選項(xiàng)中C和E可能是答案選項(xiàng)，而E中的“衛(wèi)星”在該段落中根本沒有出現(xiàn)，所以判斷C是答案。

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

A.the timely（及時(shí)的）discovery

B.convenience

C.sex equality

D.its connection with humans

E.the huge power

F.its uncertainty

正確答案：C

答案解析：依靠原文（利用（male,female）names作為答案線索詞）中第一段的最后一句判斷答案為C（與性別有關(guān)）。

6.Using weather satellites can ensure _________ of hurricanes.

A.the timely（及時(shí)的）discovery

B.convenience

C.sex equality

D.its connection with humans

E.the huge power

F.its uncertainty

正確答案：A

答案解析：該題可直接借助搭配句意判斷答案。也可借助原文（satellite作為答案線索詞：第6段第2句）確認(rèn)答案。

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

A.the timely（及時(shí)的）discovery

B.convenience

C.sex equality

D.its connection with humans

E.the huge power

F.its uncertainty

正確答案：F

答案解析：借助原文中的（scientist和predict作為答案線索詞）第3句確認(rèn)答案為F。

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

A.the timely（及時(shí)的）discovery

B.convenience

C.sex equality

D.its connection with humans

E.the huge power

F.its uncertainty

正確答案：E

答案解析：可直接借助搭配句意確認(rèn)答案范圍為E和F。上面一題答案是F，本題只能選E。

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