2021-2022学年高中英语人教版选择性必修第一册Unit2英语限时练.docx
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1、8. 30高二英语限时练.单句语法填空(每小题2分,共20分)1. This(bine) of healing myself and healing the world struck me as the perfect solution.2. Nobody can make a(predict) about what future houses will be like.3. Another key factor is likely to be whether national social(secure) programs decide to pay for the treatment.4.
2、 We can not put enough(emphasize) on the importance of protecting the environment.5. But Louis Vuitton thrived throughout the entire(occupy) and war.6. Astronomers have discovered a(distance) galaxy.7. Answers to these questions and others like them could (potential) help us avert catastrophe.8. He
3、has demonstrated a strong(prefer) for being shod in running shoes.9. Our school doesnt advocate students(stay) in the classroom too long because students should have time for sports.10. If you fail to check out in this manner, the staff will hold an inspection in your(absent) and assess whether any
4、payment is required.II.七选五(每小题3分,共15分)(时代热点)The future in sci-fi movies seems so close, yet so far away. Delightfully, 5G technology makes that future look easily achievable. Schools, hospitals, transportation, factories - even our homes will soon use this powerful wireless network. China started te
5、sting 5G mobile network in is several cities in 2019. So what is 5G? Ifs the latest generation of cellular(蜂窝状的)network technology. 11 5Gs benefits mainly e from speed and connectivity.J2 People will be able to use the Internet at amuch greater speed than before. Imagine being able to download an en
6、tire movie in just a few seconds! Thats how fast 5G will be.13 For example, one of the biggest problems with developing driverless cars is the delaybetween sending a signal and receiving it. Driverless cars must be able to react immediately to sudden changes in their environment, such as a dog runni
7、ng across the road. This will require these cars to send and receive huge amounts of data within milliseconds. 14 It will allow doctors to perform operations remotely, using robots. The robots will respond more quickly to the doctors movements.So what about 5G*s connectivity?5 Imagine having a smart
8、 home that automatically turns lightson when you open your front door.New things bcc possible when you can move information at a massive scale, Gordon Smith CEO of a tele equipment reseller, Sagent, told The Telegraph. 5G bees the great enabler.” A. 5G will make it better.B. It connects peoples live
9、s in various ways.C. Such speed helps other technologies, too.D. The advantage of higher speeds is obvious.E. We may develop smart environments with it.F. With 5G, people can conveniently solve many problems.G. It is faster and more stable than 4G, the last generation.III .语法填空(每题2分,共20分)What will o
10、ur cities be like in 2050? How much will artificial intelligence advance? Some scientists 16(make) different predictions recently.Joel E. Cohen from The Rockefeller University says 17 is Hkely Ihal by 2050 themajority of the people in the world will live in urban areas, and will have a 18(significan
11、t)higher average age than people today. Cities will be 19 only realisticsolution to housing apopulation that is expected to expand 20 9.7 billion by 2050.And the technology will keep 21(advance) rapidly. According to Bill Mitchell, thelate director of MIT Media Labs Smart Cities research group, citi
12、es of the future wont look like somesort of science-fiction fantasy or Star Trek but virtual reality will change 22we live.Self-driving cars will make the roads 23(secure), driving more efficient, andprovide fastertransport.Charles Ebinger at the Brookings Institution thinks that by 2050 we will als
13、o have a so-called “smart grid, where all of our 24(appliance) are linked directly to energydistribution(分7|j) systems,25(allow) for real-time pricing based on supply and demand. Such a technologywould greatly benefit most people and reduce the consumption(消耗)of fossil fuel energy.IV .完形填空(每小题1.5分,共
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