2019届高三人教版英语一轮复习练习案选修八Unit3含答案

1 选修八Unit 3 ■提素能 课时冲关 层级训练巩固捉

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［基础回顾］

I •单句语法填空(导学号02516346) 1. What was it that distinguished her from her classmates? 2. We must always bear in mind that China is a big country with a huge population. 3. The exhibition was organized by the school in association (associate) with local artists. 4. When you come to school, please visit my office at your convenience (convenient). 5. The service offers young people practical (practice) advice on finding a job. 6. Whether or not the secretary will be fired is at the mercy (merciful) of her boss. 7. I believe that you are innocent (innocen ce), and ni sta nd up for you any where. 8. We all have an expectation (expect) that he can pass the driving test next week. 9. I have filled in the form and filed (file) my pate nt applicati on with the Pate nt Office. 10. In my opinion, only by facing difficulties bravely and seizing (seize) opportunities can one succeed. II .单句改错(每句一错)(导学号02516347) 1. Distinguishing for its diligence and courage, the Chinese Nation has attracted the attention from the world. Distinguishing Distinguished

2. Sometimes teachers will inform students of the heavy burden the students have to bear with.去掉 with 3. The teacher's abruptly ending speaking can make some students focus their attention on their liste ning. abruptly abrupt 4. The new government must set out finding solutions to the country's economic problems. out T about 5. It is so cold and frozen that we have to stay at home. frozenTfreezing

川.佳句写作(导学号02516348) 1. 早上丢失了一小2

时，你就得在一天剩下的时间里努力寻找这一小时。 (祈使句+ and +陈述句) 答案： Lose one hour in the morning , and you will be looking for it the rest of the day. 2. 只有这样做，我们才能让世界更美好。 (倒装)

答案： Only by doing so can we help to make the world a better place. 3 .这个明星那么平易近人以至于她与粉丝相处得很好。 (so...that....) 答案： This star is so easy-going that she can get along well with her fans. 4. 我们必须牢记是共产党 (the Communist Party)领导我们走向胜利的。 (keep in mind) 答案： We must keep in mind that it is the Communist Party that leads us to victory. 5. 似乎没什么可以做的了，只有派人去请医生。 (There seem to be...) 答案： There seemed to be nothing left to do but send for the doctor. ［技能提升］ I .阅读理解(导学号02516349)

(2018 衡水模拟)A team of engineers at Harvard Uni versity have bee n in spired by Nature to create the first robotic fly. The mecha ni cal fly has become a platform for a series of new high- tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform con trolled flight tasks.

It's extremely importa nt for us to think about this as a whole system and not just the sum of a bunch of in dividual comp onents (元件)，” said Robert Wood, the Harvard engin eeri ng professor who has been working on the robotic fly project for over a decade. A few years ago , his team got the go-ahead to start pieci ng together the comp onen ts. “ The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own，” he said. They engin eered a series of systems to start and drive the robotic fly. “ The seem in gly simple system which just moves the wings has a nu mber of in terdepe nden cies on the in dividual comp onen ts, each of which in dividually has to perform well, but the n has to be matched well to everything it's connected to. "said Wood. The flight device was built into a set of power, computati on, sensing and con trol systems. Wood says the success of the project proves that the flying robot 3

with these tiny comp onents can be built and manu factured. While this first robotic flyer is linked to a small, off- board power source, the goal is eventually to equip it with a built- in power source, so that it might someday perform data-gatheri ng work at rescue sites, in farmers' fields or on the battlefield. “ Basically it should be able to take off, la nd and fly around，” he said. Wood says the desig n offers a new way to study flight mecha nics and con trol in sect- scale. Yet, the power, sensing and computati on tech no logies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the ani mals, but using these robots in stead,，he said. “ So there are a lot of tech no logies and ope n in teresti ng scie ntific questi ons that are really what drive us on a d ay to day basis. ”