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1、Unit 3 第4课时 一、单项选择1The landing of Chinas rover (登陆车) Zhurong on Mars shows China has made great _ in space exploration.AprogressBprojectCproductDprotection2Tony _ his grandfather in the hospital last summer.Alooked afterBlaughed atCpointed atDran after3Sometimes parents should leave their children t
2、o _ problems in their own ways.Ahear fromBcut upCwork outDturn down4I think some famous stars should pay more attention to their behavior because what they do can have a great _on teenagers.AchangeBimpressionCprogressDinfluence5The car hit that old man hard. He was hurt _.AcarefullyBbadlyCcorrectlyD
3、politely二、完型填空A teacher was giving a speech to his students on stress (压力) management. He held a glass of water and asked, “How 6 do you think this glass of water is?”The students answers were from 20g to 500g.“It 7 how long you hold it. If you hold it for a minute, it is OK. If you hold it for an h
4、our, you will 8 an ache in your arm. If you hold it for a day, your arm will become paralyzed (麻痹的). It is the same 9 , but the longer you hold it, the heavier it will become.” The teacher said, “What you should do is to put the glass down to 10 for a while before picking it up again.”The students b
5、ecame silent, lost in thought.After a moment, the teacher 11 , “The stresses and worries in life are 12 this glass of water. Thinking about them for a while and 13 happens. Thinking about them all day long, you will feel “paralyzed” 14 you cant do anything.Its important to let go of your 15 . You sh
6、ould put them down before going to sleep and wake up every day with a fresh start.6AclearBdirtyCsweetDheavy7Adepends onBturns onCputs onDgets on8AseeBfeelCtouchDbecome9AresultBlevelCweightDanswer10ApracticeBrestCthinkDdrink11AreportedBagreedCcontinuedDasked12AwithBasCforDlike13AnothingBeverythingCan
7、ythingDsomething14AbutBandCsoDor15AideasBstoriesCanswersDstresses三、阅读单选So, its exam time again. Have you done the necessary work to get good marks? Sleeping with the textbook under the pillow（枕头）doesnt work. The best way is to space your practice out, rather than cram（塞）it all together. Just as a sc
8、ientist called Tom Stafford advises, if you organize five hours of study into one hour a day, youll remember more than if you study for five hours on one day. Get pens and paper and start working! Students who can test themselves earlier will be better at retrieving the knowledge from the memory and
9、 keep it in the long run. John Dunlosky, a professor in the US, suggests that “you start by reading a textbook with your favorite pens and colors, and then write down the important ideas on small cards while doing so you actually try to test yourselves on them.”Good revision（复习）should give you confi
10、dence, but if you are still worried, its not harmful to follow some special customs. In Japan it seems to be a tradition for students to eat Katsudon before a test. This is a bowl of rice with egg and pork pieces. The name of the dish makes people think of the word “Katsu”, meaning “winning”. For so
11、me students in South Korea, the key to success is not washing their hair before an exam, because they believe they could wash all the knowledge out of their heads. And in different parts of the world, there are always those who believe in their “lucky underwear”.The bottom line is that you need to s
12、tudy, eat a good meal, sleep well on the eve of the test, and believe that your efforts will pay off.Good luck in your exam!16When you “space your practice out”, you _.Astudy for at least 5 hours on one dayBsleep with your textbook under the pillowCorganize 5 hours of study into one hour a day17The
13、underlined word “retrieving” would probably mean “_”.Afilling inBgetting back Cgiving away 18Which sentence can be best put in in paragraph 2?ADont read your textbooks early.BDont depend on memory alone.CDont test yourselves very often.19Which of the following is TRUE according to paragraph 3?_AThe
14、word “Katsudon” sounds similar to “winning?” in South Korea.BIn some countries, washing hair brings bad luck after having exams.CSome people might wear special underwear before important events.20What does the writer advise students to do before tests?_APrepare your exams well and be confident.BChoo
15、se your favorite pens and stay up late.CFollow some customs and enjoy yourselves.B阅读以下短文，根据短文内容，从下面各小题所给的四个备选项中，选出最佳选项。It might be fun to use your smartphone, but be careful. Too much screen time may be harmful to your health.First, it is bad for your eyes. A researcher called Sarah Hinkley says the
16、 problem comes from the blue light that the screen gives out. Looking at a smartphone for a long time can cause eyes strain (劳损), headaches and dry eyes. So it is a good idea to take a break every 15 minutes when you are working at a computer or using a smartphone.Second, screen use can do harm to c
17、hildrens brains. A new study shows that using screens too much can affect (影响) how childrens brains grow. If children use screens for more than one hour a day, they might have lower levels of white matter in their brains. White matter is a key to the development of language and reading skills. So it
18、 is wise to cut down the time of children using all kinds of screens.Third, using screens too much will affect your sleep. According to a study, about 95% of the people between the ages of 13 and 64 use electronics before bed, especially the young people under 20. Doctors say that the light from tho
19、se electronics at night may make you excited before you go to bed. Then its hard for you to get enough sleep. So youd better turn off smartphones, TVs, and all other screens an hour before your bedtime.To keep healthy, doctors and researchers strongly advise that you shouldnt use screens for long ho
20、urs.21What can looking at a smartphone for a long time cause?_ADry eyes.BEye strain.CHeadaches.DAll of the above.22How often should you take a break when you are working at a computer or using a smart-phone?_AEvery 10 minutes.BEvery 15 minutes.CEvery half an hour.DEvery one hour.23What may it affect
21、 if children use screens for more than one hour a day?_ATheir development of reading and writing skills.BTheir development of language and writing skills.CTheir development of language and reading skills.DTheir development of reading and speaking skills.24Who use electronics more before bed?_APeople
22、 under 13.BPeople between 13 and 20.CPeople over 64.DPeople between 20 and 64.25What should you do before your bedtime?_ATurn off smart-phones.BSurf the Internet.CPlay computer games.DWatch TV for a while.四、完成句子26He could not bear that his friends should _ _ him.他受不了朋友们的嘲笑。27他不怕取笑自己。He is not afraid to _ _ himself.28嘲笑别人是不礼貌的。Its not polite to _ _ other people.29这三年里你们取得了多么大的进步啊！_ _ _ you have _ _ in the past three years!30我昨天晚上花了半小时解出了这道数学题。I spent half an hour _ _ the math problem last night.