3.Until recently,scientists had mapped only about 20 percent of the sea floor.But our knowledge of the deep seas is changing because of information from satellites.Scientists have produced a new map that provides a detailed picture of the oceans.The map is expected to help oceanographers (海洋學家),industry and governments.
The new map is twice as detailed as the map made 20 years ago.David Sandwell is a geophysics professor at the University of California.He and other scientists worked on the mapping project.He says they turned to space to look deeper into the ocean.
The scientists collected and studied information from two satellites.Some of the data came from the European Space Agency's Cryo-2 satellite.It was placed in Earth's orbit to watch sea ice.The other satellite is the American space agency's Jason-1.It is studying the surface of the oceans.Scientists combined the satellite data with images gathered by sonar (聲波定位儀) equipment on ships.Sonar works by sending sound waves through the water.When the sound waves hit an object,its presence is confirmed.
The new map shows the sea floor as it has never been seen before.It shows thousands of underwater mountains and places where continents pulled apart.It shows where earthquakes were active many years ago.They all are buried deep underneath the ocean floor.
David Sandwell says the map is a powerful tool for fisheries,those interested in protecting the environment and for oil exploration.
"The petrol exploration industry is interested in how to reconnect the continents,bring them back together tectonically so you can map the basins on one continental edge-say,Africa-and use that to establish where the similar basin would be on the other continental edge in South America."
If scientists know that information,they may be able to find oil fields.The new data also will help scientists improve their estimates of ocean depths.This information can help ships travel safely and improve military operations and scientific projects worldwide.
Mr.Sandwell thinks scientists will make many more discoveries as they examine the new map and the information it provides.

32.Which one is not mentioned about the benefits brought by the new map?C
A.Fisheries.
B.Scientific projects.
C.Ship manufacture.
D.Oil exploration.
33.What can we know about the new map?B
A.It shows where earthquakes will happen.
B.It will be helpful to industry and governments.
C.It is three times as detailed as the old one years ago.
D.It shows the sea floor as it has ever been seen before.
34.The text is likely to appear inC.
A.a(chǎn) newspaper    
B.a(chǎn)n advertisement
C.a(chǎn) science magazine    
D.a(chǎn) finance report
35.Which of the following can be the best title for the text?D
A.The detailed picture of the oceans
B.Underwater mountains and places
C.More discoveries about the oceans
D.Scientists create new maps of ocean floor.

分析 本文屬于說明文閱讀,作者通過這篇文章主要向我們介紹了科學家繪制的新式海底地圖,它比20年前的地圖要詳細得多,還給海洋科學,工業(yè)科學,石油勘探等方面都帶來了許多好處,甚至能幫助船舶安全地旅行,并改善世界范圍內(nèi)的軍事行動和科學項目.

解答 32.C. 細節(jié)理解題.根據(jù)文章第五段中的"…the map is a powerful tool for fisheries,those interested in protecting the environment and for oil exploration."可知,新式地圖的編制有利于漁業(yè),環(huán)境科學研究以及油氣勘探等方面.沒提到造船業(yè); 故選C.
33.B. 細節(jié)理解題.根據(jù)文章第一段中的"The map is expected to help oceanographers (海洋學家),industry and governments."可知,新式地圖有利于海洋學家,工業(yè)及政府; 故選B.
34.C. 推理判斷題.縱觀全文,主要講述了新式地圖給海洋科學,工業(yè)科學,石油勘探等方面帶來的有利之處.故可以推測該文來源于科技雜志.
35.D. 主旨大意題.根據(jù)文章第一段中的"Scientists have produced a new map that provides a detailed picture of the oceans.The map is expected to help oceanographers (海洋學家),industry and governments."以及下文對新式地圖繪制過程及在各領域方面的運用可知,本文主要介紹了科學家繪制的新式海底地圖; 故選D.

點評 考察學生的細節(jié)理解和推理判斷能力,做細節(jié)理解題時一定要找到文章中的原句,和題干進行比較,再做出正確的選擇.在做推理判斷題不要以個人的主觀想象代替文章的事實,要根據(jù)文章事實進行合乎邏輯的推理判斷.

練習冊系列答案
相關習題

科目:高中英語 來源: 題型:短文改錯

15.假定英語課上老師要求同桌之間交換修改作文,請你修改你同桌寫的以下作文.作文中共有10處語言錯誤,每句中最多有兩處.每處錯誤僅涉及一個單詞的增加、刪除或修改.
增加:在缺詞處加一個漏字符號(∧)并在其下面寫出該加的詞.
刪除:把多余的詞用斜線(\)劃掉.
修改:在錯的詞下劃一橫線,并在該詞下面寫出修改后的詞.
注意:1.每處錯誤及其修改均僅限一詞;
   2.只允許修改10處,多者(從第11處起)不計分.
Recently,if browsing a high school website of Australia,I saw the message you post on it.It get to know that you intend to travel to Xi'an during the summer vacation with a Chinese student as you guide.
Learning this news,I am really willing to travel with you and introducing Xi'an to you.I know as a excellent guide I should make your journey interesting and meaningless.I will keep you company visiting numerous places of interests and enjoying the wonderful scenery.However,I am going to tell you the long but rich history of Xi'an.
Hope you reply me soon.

查看答案和解析>>

科目:高中英語 來源:2017屆河北省高三下學期第1周周測英語試卷(解析版) 題型:閱讀理解

My color television has given me nothing but a headache. I was able to buy it a little over a year ago because I had my relatives give me money for my birthday instead of a lot of clothes that wouldn’t fit. I let a salesclerk fool me into buying a discontinued model. I realized this a day late, when I saw newspaper advertisements for the set at seventy-five dollars less than I had paid. The set worked so beautifully when I first got it home that I would keep it on until stations signed off for the night. Fortunately, I didn’t got any channels showing all-night movies or I would never have gotten to bed.

Then I started developing a problem with the set that involved static (靜電) noise. For some reason, when certain shows switched into a commercial, a loud noise would sound for a few seconds. Gradually, this noise began to appear during a show, and to get rid of it, I had to change to another channel and then change it back. Sometimes this technique would not work, and I had to pick up the set and shake it to remove the sound. I actually began to build up my arm muscles(肌肉) shaking my set.

When neither of these methods removed the static noise, I would sit helplessly and wait for the noise to go away. At last I ended up hitting the set with my fist, and it stopped working altogether .My trip to the repair shop cost me $62, and the set is working well now, but I keep expecting more trouble.

1.Why did the author say he was fooled into buying the TV set?

A. He got an older model than he had expected.

B. He couldn’t return it when it was broken.

C. He could have bought it at a lower price.

D. He failed to find any movie shows on it.

2.Which of the following can best replace the phrase “signed off” in Paragraph 1?

A. ended all their programs B. provided fewer channels

C. changed to commercials D. showed all-night movies

3.How did the author finally get his TV set working again?

A. By shaking and hitting it. B. By turning it on and off.

C. By switching channels. D. By having it repaired.

4.How does the author sound when telling the story?

A. Curious B. Anxious

C. Cautious D. Humorous

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

8.It is well-known that knowledge is ______ treasure house,but practice is ______ key to it.( 。
A.a; theB.the; theC.a; 不填D.不填; the

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

15.We all know clearly the immediate future,________,however,it is hard to tell what lies.( 。
A.through whichB.within whichC.beyond whichD.towards which

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

8.________ it is so hot,I guess we can't do anything until after dark.( 。
A.In caseB.Now thatC.Even ifD.As though

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

15.The influence of this book might not have been reaching so far,________for Mr.William,who dared to publish it.( 。
A.if had it not beenB.is it not being
C.had it not beenD.its only having been

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

12.-Are you still thinking about the email Tony sent you yesterday?
-Oh,to tell the truth,that's          makes me feel excited.( 。
A.WhatB.howC.thatD.why

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

6.It depends on the government's measures ____ the housing price will be brought under control by the end of this year.( 。
A.howB.thatC.whetherD.when

查看答案和解析>>

同步練習冊答案