课时训练十七Units9 -10九全限时:30分钟I .单项选择1. George, how can you prove the earth is round? I can t, sir.,I never said it was.Thank you very much.2.2021 -深圳改编Anne, the information you gave is really - Not at all. I am happy I can help you.D.interesting3.2021 原创 Tommy, you can never let others know what I have told you today.- Don t worry. I will keep the.4. 2021 滨州 I could control my feelings at the moment. The song brought back so many childhood memories.5. 2021 -原创We all know that learning English welltime and efforts.6. Don t waste time with him. He will not understand you at all.C.to talk7. 一 Many teenagers put mobile gaming other things and spend too much time on it.That s really badA.up to B.as forC.ahead of D.along with8. 2021 保定竞秀区模拟 Youthe homework! Let s go to the book store together.B.are finishing C.will finish D.have finished9. He lost control of his bike and.A.fell down B.pushed downC.put down D.sat down10. 2021 日照New media, like WeChat, the way of communications nowadays.A.are changing B.will changeD.were changingn .2021 通辽完形填空“Problems and worries are normal 正常in life. says Laura. But I think talking to someone helpsa lot.If we d on t talk to someone, we ll certainly feel11 .Laura once lost her 12 , and worried for days.She was afraid to tell her parents about it.She evenwalked three miles to school each day, because she didn t have any money.She just kept 13 of the problem again and again in her mind. If I tell my parents, they ll be angry! But in the end, she talked to her parents and they were really14 .Her dad said that he 15 made careless mistakes himself.They gother a new wallet and asked her to be more careful.I will always remember to16 my problems in thefuture! Laura says.Robert Hunt advises students about common17 . He feels the same way as Laura. It is best not toavoid our problems.We should always try to solve them. He thinks that you can first find someone to talkto.This person doesn t need to be an expert 专家likehimself.Students often forget that their parentshave more 18 than them, and are always there to19 them.In English, we say that sharing a problemis like cutting it in half.So you re halfway to solving a problem if you talk to20 about it.11AbetterB.happier C.worse12 .A.walletB.bike C.money13 .A.hopingB.thinking C.wishing14 .A.seeingB.knowingC.learning15 .A.sometimes B.alwaysC.never16 .A.cover B.shareC.guess17 .A.questions B.answers C.ideas18 .A.friendshipB.loveC.truth19 AhelpB.beat C.hurt20 .A.noneB.someoneC.each D.no onem .2021 原创阅读理解A company says it has completed the first 3D-printed home recently. The home was shown to reporters and visitors at a music festival.The building company has developed large 3D-printers that build homes with mortar, a hard and strong material. It uses robotics, computer programs and advanced materials to make houses.Jason Ballard is the compa ny s chief engineer. So I m standing in front of the first 3D-printedhome in America. This house was actually printed in high winds, blowing dust and rain. It is importantfor the printing programmes to operate in bad weather conditions, such as weather disasters. The goal is to print homes in developing countries. So the printer has to be light enough to move from one property to the next.Ballard imagines that someday, many 3D- printers will operate around the world to make homes.It sactually a lot more simple to build a printer than it is to build a house, he said.We ran this printerat about a quarter speed to print this house, and completed it in about 48 hours of print time.The company developed this technology not to makemoney but to help provide a quick, cheap housing solution for the millions of people who need it most. There are about a billion people that don t have one of life s most basic human needs, and that s a safe shelter.Ballard says his company already works on housing needs with poor families in different areas. But he says that to really make a difference, the program will need to be greatly improved. He added that since the 3D-printing process is so much faster than traditional homebuilding, a whole community could be built in just a few months. He believes over time, people can get the new home below $4,000 with the help of 3D-printers.21 .What kind of building material can be used in 3D printing according to the passage?A.Light but strong. B.Light and soft.C.Strong but expensive. D.Hard and strong.22 .What is the meaning of the underlined wordaproperty in Paragraph 3?A.Land for farming.B.Land for building houses.C.Land for raising animals.D.Land for running companies.23.It will take about hours to print a house if the printer is at its full speed.24.What is the best title for this passage?A.The Future of 3D PrintingB.The History of