专业好文档三、概括大意和完成句子第四篇 Compact Disks课文：1、Ifwide2、A smallas music3、Digitalcodes4、ThereCD-ROMs5、CDs.of them6、Science.CD-ROMs练习：1、Paragraphs 12 (CDs.Explained)【D】2、Paragraphs 3 (Digital.Applications)【A】3、Paragraphs 4 (CDs.Formats) 【F】4、Paragraphs 5 (CDsdurable) 【C】5、Onedisks (be.on) 【E】6、The.record-ing (takeyears) 【B】7、The.CD Player (be .parts) 【C】8、Spacecodes (keep.efficiently)【F】第五篇 LED Lighting课文：1、Anlighting2、Michael.of atoms3、When.white glow4、Then.bulb5、LEDsto break6、Quantum.a fork练习：1、Paragraphs 1 (LEDLighting) 【B】2、Paragraphs 3 (BowersDiscovery)【E】3、Paragraphs 5 (LED.Advantages)【D】4、Paragraphs 6 (AlmostFutur) 【C】5、Unlikeso (it is.efficient) 【F】6、Edisons.because (traditional.dear)【A】7、Somethingwhen (adots) 【B】8、Over2025 if (AmericaLEDs) 【C】第一篇More Than 8 Hours sleep too Much of a Good Thing课文：1、AIthough.consequences.2、Investigators.sleepers.3、These.This4、Previous.more5、Forfunctioning6、Kripkehe said练习：1、paragraph 2（sleepsleepers）【E】2、paragraph 4 (Dangersof sleep)【B】3、paragraph 5 (Kripkes.Tool)【A】4、paragraph 6 (A Way.Insomnia)【D】5、Toneed to (sleep.than 8 hours)【F】6、Long.likely to (suffer.problems)【E】7、One.unable to (fall.again) 【A】8、One.of dying (sleep7hours) 【C】 第二篇Soot and soow:a Hot Combination 课文：1、New.past century.2、Soot.sunlight.3、Soot.New York4、Hansenand land.5、“Black”.Hansen noted.6、Hansen.of is century.7、Thesunlight.练习：1、paragraph 3 （Explanationsoot）【C】2、paragraph 4 (Soots.Atmosphere)【A】3、paragraph 6(GreenhouseWarming)【F】4、paragraph 7 (Observations.Hemisphere)【B】5、InSoot (Contributed.warming)【B】6、Hansen.gases ( stillcentury)【E】7、Black.ice (absorb.backgound) 【D】8、A soot.which (producesmagnitude) 【A】 第三篇 Icy Microbes课文：1、In iceof ice2、A research.to life3、Doran.on Mars4、Called.seawater.5、That.bacteria6、The.covering练习：1、paragraph 2 （Antarcticrevived）【E】2、paragraph 3 (Significancesheet)【A】3、paragraph 4(Accidental.Antarctica)【F】4、paragraph 6 (2004Specimens)【D】5、Scientistsof ice ( Was of value)【B】6、Scientists ice sheet (may.of ice)【C】7、What thein 2004 (is toanalysis) 【E】8、The.lake Vida (is found seawater) 【A】 第六篇How We Form First Impression课文：1、We .traits2、The.mean3、If youwrong4、When.or freaks5、However.hunane练习：1、Paragraphs 2 (ComparingMemories) 【D】2、Paragraphs 3 (IllustrationImpression)【C】3、Paragraphs 4 (CommentImpression)【B】4、Paragraphs 5 (WaysImpressions) 【A】5、Sensory.Through(TheThrough)【E】6、Youbrain (The.information)【D】7、Theto (The.child) 【C】8、Weto (Thecortex) 【B】第七篇：Screen Test1. Every year 。 women under 50.2. But the medical。 tissue is denser.3. Researchers at 。 this would cause. 4. The mathematical 。figure of 20 cancers. 5. The researchers 。women screened.6. But they point 。 screening.7. “There is a 。 any screening programme.”练习：1. Paragraph2 _Harm Screening May Do to a Younger Woman 2. Paragraph3 _ Investigating the Effect of Screening 3. Paragraph4 _ Effects Predicted by Two Different Models 4. Paragraph5 _ Small Risk of Inducing Cancers。5.Early discovery of breast cancer may_ save a life6.Advantages of screening women under 50 are _ still open to debate 7.Delaying the age at which screening starts may reduce the risk of radiation triggering a cancer 8.Radiation exposure should be _ reduced to the minimum第八篇The Mir Space Station1. The Russian 。firsts in space.2. During Mirs lifetime。the station.3. The Soviet Union。by space shuttles.4. The more than 400。multinational operations.5. A debate continues。 aboard Mir in 1996.6. Despite the many。tation was ruined.8. Mirs setbacks are。great debt to Mir.练习：1. Paragraph 4 _B_ Rewardsfinancial injection2. Paragraph 5 _E_ Mirs firsts space exploration3. Paragraph 6 _ C_ Mirs problem year 4. Paragraph 8 _A_ Undeniable Mirs achievements5. Mir enhanced the confidence in the scientists that humans living in space for a long time was _ quite possible.6. In Mir, the U. S. astronauts created _ many firsts.7. When we think of Mir., its setbacks are _ nothing.8. The writer tend to think that Mir was _ a great success _. 第九篇More Rural Research Is Needed1. Agricultural researchto stay ahead. 2. “The global decline poverty, ” he said. 3. Research is 。 South-East Asia. 4. The developing from all countries. 5. He said crop 。 China of India. 6. “Technologies still Dr. Fischer said. 7. Yields of rice, Fischer said. 练习：1. Paragraph 1 _ Increase in investment on agricu