Unit 7（A卷·知识通关练） 一、单项选择 1．A little boy wrote_____ “u” and_____ “h” on the wall.(原创) A．a,an B．an,a C．a,a D．an,the 2．Andrew's honesty and wisdom will surely make him a _____ businessman. A．succeed B．success C．successful D．successfully 3．On snowy days, a driver must drive as _____ as possible. A．care B．careful C．careless D．carefully 4．Put the milk into the fridge, or it will go _____ easily in summer. A．worse B．worst C．bad D．badly 5．Everyone likes Amy because she always talks to others _____. A．lovely B．politely C．friendly D．lively 6．The fish we caught in the river this morning is still _____ now. A．live B．lively C．living D．alive 7．The book was useful because it gave us _____ advice on how to improve memory. A．few B．little C．many D．much 8．The population of China is _____ larger than that of Australia. A．so B．very C．too D．much 9．After whole day's work, the boy felt very _____ but excited. A．tired B．tiring C．relaxing D．relaxed 10．— What is the Trip Code (行程码) used for？ — It’s used to show where you _____ in the last 14 days. A．were B．will be C．have been D．had been 11．—Oh, your room is too dirty, Anna! —Sorry, Mum. It _____ yesterday. I forgot to do it. A．didn’t clean B．isn’t cleaned C．wasn’t cleaning D．wasn’t cleaned 12．On the wall two large photos. A．hanging B．hanged C．hang D．hangs 13．—I can’t work out the chemistry problem _____ you help me. A．if B．unless C．because D．as soon as 14．Shenzhou XIII returned to Earth safely and successfully on April 16, 2022. I wonder _____. A．how the three astronauts worked in the aircraft B．that the three astronauts has finished their work C．whether were the three astronauts happy in the aircraft D．what did the three astronauts do in the aircraft 15．WeChat is an invention _____ can help us communicate with others conveniently. A．who B．that C．where D．when 二、 A. In the end, B. thankful, C. reduce, D. uncomfortable, E. However Few of us have heard of Nils Bohlin, but whenever we take a car journey, his invention is important to us. Found in almost every modern car, the three﹣point seat belt can 16 our chances of death or injury by at least 50%. While feeling 17 to this engineer from Volvo, you may also wonder how he came up with such a great idea. Having worked as a plane designer before, Nils knew clearly that the pilots were willing to put on anything to keep them safe in an accident, but to his surprise, most people in the cars didn’t want to be 18 for even a minute. To improve the safety for people in the car, he decided to improve the safety for people in the car, he decided to find a perfect system which should be simple, effective and convenient. 19 , he invented the three-point seat belt, which has been considered as one of the greatest inventions in history. A. produce, B. importance, C. slow down, D. protect, E. suddenly Seat belts prevent people in the cars from serious injury in the following ways ... ...
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