高考英语一轮复习 Unit 3　The Million Pound Bank Note收尾精炼 新人教版必修3.doc

unit 3the million pound bank note.单项填空1_ is known to everybody，the moon travels around the earth once every month.aitbascthatdwhat2is mr.smith rich?yes，very rich.when he worked in _ town，he earned a lot.now he has a big farm in _ country.aa；theb/；/c/；thedthe；/3while watching titanic，most people couldnt help crying when it came to the scene_ jack saves the girls life but dies in icy water himself.awhichbascwhydwhere4come in，please.make yourself at home._im glad you like it.athanks.you have a nice place here.boh，this picture is so beautiful.cthanks.what nice food youve prepared!dok.let me look around your new house.5it is said that the prisoners were_ to take two hours exercise a day.asupposedbpermittedcforbiddendpersuaded6wang wei gave us a vivid _ of her trip down the river.aexplanationbideacimaginationdaccount7he is a heavy smoker，which makes all of us_.acomfortablebillcpleasantdsick8april fools day is coming.be careful not to be_ when others play tricks on you.abrought inbcaught inctaken indmade in9would you please_this form for me to see if ive filled it in right？atake offblook aftercgive updgo over10i believe you like the job._，i am tired of it.aon the contrarybon contrarycon the other handdon other hand11_any untrained actor，getting in front of the camera can be difficult.aas far asbas well ascas long asdas with12i suddenly found myself_ down the street when i found two policemen in front of me.arunbrunningcrunsdran13_ you prefer，ill give it to you，but we havent any other models for you to choose from.awhateverbwheneverchoweverdwhichever14why the explosion occurred was _ the laboratory attendant had been careless.aforbbecausecsincedthat15excuse me，would you please tell me _？awhen the sports meeting is taken placebwhen is the sports meeting going to be heldcwhen is the sports meeting to begindwhen the sports meeting is to take place.阅读理解a huge cloud of dust rose and an overpass disappeared.this was the scene in zhuzhou，hunan province on may 17.nine people were killed and 16 injured.things were similar last year in the sichuan earthquake.thousands of people were buried in the ruins and lost their lives.what if we could have warned them?people are always racking_their_brains to find a way of preventing buildings collapse.better materials and technology help，but they are not a solution.just like humans，a building has its own life cycle from “birth” to “death”if we know when a building is going to collapse，we can repair it in advance or get out of it before it falls.now，scientists at the university of illinois have developed a material that turns red before it breaks.the invention could be used in things like climbing ropes or bridge supports.the research was led by nancy sottos，a professor at the universitys beckman institute，and douglas davis，a graduate research assistant.the secret behind the colorchanging material is a type of molecule (分子)a molecule is a group of atoms held together by chemical bonds.imagine you and your friends standing in a circle，holding hands.each person stands for one atom，your hands represent the bonds，and the entire circle represents a molecule.if one person lets go of his or her hands，the molecule changes color.the research team put the molecule into a soft material.when the researchers stretched the material，it turned bright red for a few seconds before it broke into two pieces.when they repeatedly stretched and relaxed the material，without breaking it，it only turned a little red.the major problem is that light can get rid of the red color.when the team shone bright light on the molecule，the broken bond was fixed，and the color disappeared.if the bright light keeps the red color from appearing，the materials warning system will be useless.scientists still have a lot of work to do before the colorchanging molecules can be used outside the lab.16what does the passage mainly introduce?athe collapse of an overpass in zhuzhou，hunan province.bthe sichuan earthquake last year.ca material that turns red before it breaks.da way of preventing building from collapsing.17the underlined words “racking their brains” in the third paragraph mean _.asuffering a lotbcollecting beyond imaginationclosing a lotdthinking very hard18which of the following is a wrong statement?athousands of people died from the collapse of buildings in the sichuan earthquake because they hadnt been warned.bthere is no building that will never collapse.ca new material has been applied to buildings to warn people of collapse.da colorchanging material can turn red before it breaks.19what is the major problem in the research of the colorchanging material?abright light can get rid of the red color.bwhen the material is relaxed，the color disappears.cthe materials warning system is useless.dthe molecules only change color in the lab.20what can we infer from the passage?athe colorchanging molecules are certain to be used outside the lab.bthere will be no collapse with the help of the colorchanging material.cthere is a long way to go before the material can be applied.dthe problem caused by bright light will be solved by scientists. 任务型读写attention deficit (不足) hyperactivity (活动过度) disorder is known by the letters ad.h.d.children with ad.h.d.might have trouble paying attention.they might not seem to listen and might forget things.they might not be able to stay seated or play quietly.they might talk too much，act and speak without thinking about the results of their behavior.these are among the signs named on the website of americas centers for disease control and prevention.doctors usually identify the disorder in children.but experts say the behaviors often last into adulthood.researchers have been looking for the cause or causes of attention deficit hyperactivity disorder.now, a brainimaging study offers more evidence that could lead to new ways to treat it.researchers say they observed shortages in the brains reward system in patients with ad.h.d.the study found that levels of some proteins were lower than normal.nora volkow, director of the national institute on drug abuse, says the lack of attention and selfcontrol that mark ad.h.d. could be caused by problem in the flow of dopamine(多巴胺). she says people might have difficulty completing an activity if they cannot expect some kind of reward in return. researchers studied the pathways on which dopamine travels and ad.h.d. doctor volkow says the researchers then compared the pathways to those of 44 adults without the disorder. “there is a lower concentration of dopamine markers in the brain of individuals with ad.h.d., specifically in the areas of the brain that are involved with reward and motivation. and the dopamine levels are directly linked to the severity of the patients inattention，”she says.the study used brain images taken at brookhaven national laboratory in new york state. jack wang is chairman of the brookhaven medical department. he says the finding might also help explain why people with ad.h.d.are more likely to abuse drugs o