Unit 5 Section A 第2课时(3a-3d)-【勤径学升】2026-2027学年九年级上册英语同步练测教师用书Word（人教版·新教材）

[答案　P13] 一、根据句意及汉语或首字母提示填空完成句子。 1．The super(超级的)computer can solve difficult problems in a very short time. 2．We can store all the information(信息)in the computer and find it easily when needed. 3．This new type of plastic(塑料)is environment­friendly and can be recycled. 4．Please describe your idea in detail so that we can understand it better. 5．Thomas Edison was a great inventor who liked to invent new things that changed people's lives. 二、根据句意填写单词，完成句子。 6．This is the most important thing for our school of all time. 7．Before the radio was invented, information travelled very slowly. 8．The world was made much smaller by the radio. 9．Jim helped other three poor students as well. 10．The teacher's encouraging words had an important influence on the boy. 三、根据汉语意思完成句子，每空一词。 11．你认为有史以来最有用的发明是什么？ What do you think is the most useful invention of all time? 12．新闻可以在几秒钟内传遍全世界。 News could be spread around the world in seconds. 13．1901年，一条无线电报首次横跨大西洋被发送出去。 In 1901, a radio message was sent across the Atlantic Ocean successfully for the first time. 14．其他一些重要的发明也被研发出来了。 Some other important inventions were developed as well． 15．无线电对音乐也产生了很大的影响。 The radio also had a big effect on music. 四、阅读还原。 [青少年创新思维与实践力]Have you ever almost hit someone when opening the car door without looking carefully? Ju Wenxuan is a 14­year­old girl. She made a new tool to help stop these accidents on her own. “During busy times when I was in the back of a car, it was really hard to see if it was safe to open the door，” Ju said. Ju found that some devices can help with this problem. But they are usually only in newer smart cars. People can't use them in their older cars. 16.A People can put it on the car's rearview mirror(后视镜). When a person or a car gets close or someone pulls the door handle, it will sound an alarm. Ju also asked people how much they would pay for this tool. Most wanted it to be between 100 and 300 yuan. 17.B She used as few parts as possible to make it cheaper. Many people want to know if this tool will be useful in daily life. 18.E If a stranger gets close to kids, it will sound an alarm right away. Some people may wonder why a 14­year­old girl could invent such a useful tool. 19.C She kept testing and improving it until it worked well. Now Ju hopes more people can know about her invention. 20.D What a great invention it is! 根据语篇内容，从方框内所给的选项中选出能填入空白处的最佳选项，使短文语意连贯。选项中有一项为多余项。 A．So she tried her best to make a new tool that can be used by any car. B．So she worked hard to lower the cost. C．The answer is that she spent a lot of time on it. D．If it becomes popular, it can help stop many door­opening accidents. E．In fact, this tool not only helps with car doors, but it can also help keep kids safe. F．However, not everybody can afford a new smart car. 学科网（北京）股份有限公司 $