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1、Passage 28What do Napoleon,Clinton and Wang Nan have in common?They are allleft-handed.Today,about 15%of the number of people is left-handed.But why are peopleleft-handed?The answer is the way the brain（大 脑）works.The brain has twohalves the right half controls the left side of the body,and the left
2、controls the rightside of the body.So right-handed people have a strong left-brain and left-handedpeople have a strong right brain.The two halves of he brain are about the same size.But each side controlsdifferent things.The left side controls language,math and logical（逻 辑 的）.Whenyou remember new wo
3、rds,or when you put things in order,you use your left side.The right side of the brain controls your love of art,colors and music.It is alsogood at recognizing（识 另 ll）faces.This does not mean that all artists are left-handed and all accountants（会 计）areright-handed.Some right-handers have a strong ri
4、ght brain,and some left-handershave a strong left-brain.l.The phrase“in common in the first sentence m e a n s.A.the same B.different C.strange D.interesting2.People who are right-handed or left-handed are mostly decided b y.A.their parents B.their mindsC.the way the brain works D.the way the head w
5、orks3.Each side of the brain.A.likes music and math B.controls different thingsC.controls the same thing D.has two halves4.When you are singing,you are using y o u r.A.logic thinking B.heart C.left brain D.right brainPassage 29Before you use your new microwave oven,read the instructions carefully.Ea
6、choven has its own control panel（控 制 板），but most microwave ovens operate in asimilar way.Look at the control panel shown here.It shows the time at the top of thepanel.Under the time are the different functions（功 能）.You can press（按）Defrost,Cook,Clock,or Power.You can also warm food by pressing Reheat
7、 Times.Under the functions are the numbers.These numbers are shown as on telephone,from zero through nine.You can press the numbers to set the cooking time in secondsor minutes.Under the numbers are Start and Clear.A microwave oven will automatically（自 动 的）cook on HIGH（power level 10）unless you ente
8、r a lower power level.Suppose（假 设）you want to cook a serving ofbroccoli for two minutes and forty-five seconds on MEDIUM power（level 5）.First,press the numbers 2,4 and 5（two minutes,forty-five seconds）.Then press Power.Next,press the number 5.At last,press Start to begin cooking.If you make a mistak
9、e,press Clear.This will clear the display and allow you to start over again.阅 读 短 文，然 后 根 据 其 内 容 回 答 下 列 问 题。：?0D:e x*1M X.M Jl.What is the main idea of the passage?2.What functions does a microwave oven have?3.How would you cook green beans for two minutes and thirty seconds at powerlevel 7?4.What
10、 is the last function you press each time you set the controls?5.What does“Clear allow you to do when you press it?Passage 30No one knows why we sleep,but its certain that we need to.People who areprevented from sleeping begin to suffer obvious effects after a few days-they thinkless clearly,and the
11、y fall asleep during the working hours.There are no rules about sleep.Generally speaking,grown-ups sleep about 7 anda half hours each night and probably more than 60 percent get between seven andeight hours.But perhaps eight percent are quite happy with 5 hours or less,and fourpercent or so find tha
12、t they want ten hours or more.If you feel all right,youreprobably getting enough sleep.The important thing is not to worry how much otherpeople get-their needs may be different.Exercise doesnt seem to increase the needfor sleepoffice workers,for example,sleep for about as long as people doingphysica
13、lly active work.Children sleep more than grown-ups-perhaps 14 to 18 hours soon after birth,going down to grown-up levels by early teenage（青 少 年）.Sleep patterns also tend（倾 向）to be different in the old people,who may sleep less at night than they didwhen younger,find sleep getting more broken,and oft
14、en make it a rule to sleepduring the daytime.l.Some people cant think clearly b e c a u s e.A.they have bad memory B.they feel sleepy during the working hoursC.they dont have enough sleep D.they are certain to be kept from going to bed2.Whether you have got enough sleep is judged（判 断）b y.A.how many
15、hours you have slept B.how many hours you need to sleepC.if you do exercise and physical work D.if you feel fresh energetic3.According to the passage,a boy of 14 years old s l e e p s.A.as long hours as a grown-upB.much longer hours than a grown-upC.for 14 hours each nightD.for less than 8 hours eac
16、h night4.Which of the following is True?A.A11 grown-ups much have at least eight-hour sleep.B.Most of grown-ups sleep for seven or eight hours.C.Quite a few people need only 5 hours or less for them to sleep.D.No grown-ups sleep more than ten hours.Passage 31Some people want to be sent into space af
17、ter their death,others want to lie deepunder the sea.But most people want to go into the freezer（冷 藏 库）.These arebelievers in cryogenics（低 温 冷 冻 学）.Now some diseases can*t be cured,but they may be cured sometime in the future.So some people hope that their bodies can be frozen after they die.When a
18、cure isfound,warm up his or her body,bring it back to life and take the cure.Once the bodyis frozen,it is kept in liquid nitrogen（液 态 氮）at a temperature of 328 degrees belowzero.Now around a thousand people are going to take cryogenic treatment（处 理），though most scientists say it wont work.If we free
19、ze huge creatures（生 物）likehumans,every one of their cells（细 胞）will be broken.Can they be brought back to lifein the future?阅 读 短 文，然 后 根 据 其 内 容 回 答 下 列 问 题。1.Where do most people hope that their bodies are kept after their death?2.Why do they want the world to keep their bodies well?3.How do scientists usually keep a dead man*s body?4.How many people are going to take cryogenic treatment after they die?5.Can a man who died of cancer come back to life in the future if his body isfrozen?Why?