Unit 3 课时分层作业9

1、课时分层作业(九)Section 、Section (建议用时：40分钟)语言知识练习固基础.单词拼写1Her opinion may _(重要)because of her rich experience.2The _(损失)of the money has been a weight on my mind.3The students are _(大部分)from America or Canada.4The tennis players need total _(集中)During a play.5We had a _(平静的)afternoon without the children.

2、6Roughness of the _(皮肤)can be causedBy bad diet.7Many reforms must be made to the education _(体系)8_(适当的)diet and exercise are both important to health.9They walked，_(跳)and danced on their toes.10The plane will be taking off in _(大约) five minutes.单句语法填空1Have you ever dreamed of earning a large amount

3、 _ money by acting?2He said that fighting _(concentrate)around the towns to the north.3_ is useless spending much time on this matter.4I count Jules and Ady _ my closest friends.5I need a _(peace)and quiet environment to work in.高考题型练习提能力.阅读理解AFor all the dinner tables，a glass of milk seems to be a

4、constant，at least it was when I was growing up.It was widely believed that milk was integral(不可或缺的)in building strong bones and teeth.Theres no doubt that dairy products(乳制品)，and milk in particular，are high in protein and calcium，and most milk products are supplemented(补充)with Vitamin D and Vitamin

5、A.While its well known that our bones need calcium，some studies suggest that high calcium intakes doesnt necessarily lower a persons risk for fractures(骨折)A Harvard study found that people who drank two or more glasses of milk had no greater protection from breaking a bone than those who drank a gla

6、ss or less a week.Theres no doubt that we need calcium.Some antidairy supporters claim that dairy can lead to heart disease.Much of this claim is based on high fat and high dairy products，like cheeses and creams，which may indeed contribute to cardiovascular(心血管的)problems.Some studies have linked hig

7、h milk intakes with a risk of prostate cancer；this seems to be caused by highfat dairy products，not dairies in general.Although milk is always regarded as one of the most important things we need for our bones，yet least promoted factors involved in strengthening bones.Perhaps we should think of dair

8、y as less like a nutrient and more like a food.If you like it，eat it.If not，find some_others.Because some claims may not be completely true，when I eat a cream，Im not thinking about calcium，protein，or any such thing，Im thinking delicious.1Which of the following is TRUE about the milk and fractures?AT

9、he more milk you drink，the more risk for fractures you might be.BThe more milk you drink，the less risk for fractures you might be.CThe less milk you drink，the less risk for fractures you might be.DThere is no link between them.2Some antidairy supporters claim that dairy can lead to the following EXC

10、EPT _.Acardiovascular problems Bheart disease Cprostate cancer Dstomach cancer3The underlined words“some others”in the last paragraph refer to“_”Adairy productsBmilkCfoodDcream4We can learn from the text that _.Aall the claims are not completely trueBhigh milk intakes can lead to cancerCits necessar

11、y for you to reduce milk intakesDyou should give up milk for your healthBComputers can injure you.Most other injuries happen suddenly.For example，if you fall off a bike and break your arms，it happens very quickly.But computer injuries happen slowly.You probably know how to ride a bike safely.Now lea

12、rn to use a computer safely.Your eyesToo much light can injure your eyes，so never sit too close to a computer screen.Your eyes should be at least 50 centimetres from the screen.Remember to look away from it sometimes.This gives your eyes a rest.When you use a computer，the window should be on your le

13、ft or your right.If it is behind you，the light will reflect(反射)on the screen.If the window is in front of you，the sun and the screen will both shine into your eyes.Your handsHand injuries can happen because the hands are moved in the same way hundreds of times.If you use a keyboard for a long time，f

14、ollow this rule：stop sometimes and exercise your hands and fingers in different ways.Your backSome people sit for many hours in front of a computer.If you sit in the wrong way，you can injure your back and your neck.So you should sit with your back straight.The top part of the screen should be in fro

15、nt of your eyes.If you are sitting for a long time，get up every 30 minutes and exercise your arms，legs and neck.Enjoy your computer，but use it safely.5How many kinds of computer injuries are mentioned in this passage?AOne.BTwo.CThree.DFour.6A computer screen may injure your eyes if _.Ayou sit 60 cen

16、timetres awayByou remember to look awayCyour eyes are too close to itDthe window is on your left or right7Which sentence is NOT true according to this passage?AYou should sit with your back straight while you work on a computer.BStaying in front of a computer too long may injure your eyes.CWhen you

17、work on a computer，your hands almost move in the same way.DThe writer thinks that computer is bad for your health.8What would be the best title for the passage?AHow To Protect Your EyesBHow To Protect Your HandsCHow To Use A Computer SafelyDHow To Protect Your Back.短文改错假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的

18、以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号()，并在其下面写出该加的词。删除：把多余的词用斜线()划掉。修改：在错的词下画一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2只允许修改10处，多者(从第11处起)不计分。One day，I was walking to home after school while an old man fell heavily onto the snowcovered road.The number of people passed by，but no one took action.Some of them said it was none of our business；others worried that if they helped him，they might get into a difficult situation.Seeing what hav