广东省东莞市常平常青学校2021-2022学年九年级上学期期中英语试卷

2021-2022学年广东省东莞市常平常青学校九年级（上）期中英语试卷 语法选择 1．（10分）Your internet experience is ruined（破坏） when the net speed is too slow ﹣ it （1）　 　 so long to open a web page and the show（2）　 　you're watching stops every few minutes．That may make you mad．But it could be a thing of the past． （3）　 　 June 3，1999，the Ministry of Industry and Information Technology said that China（4）　 　 going to give out licenses for the commercialization（商业化） of 5 G． 5 G promises much（5）　 　data download（下载） and upload speeds．This means that you will be able to download（6）　 　 movie in seconds and only experience a short delay （ 延 迟 ）between sending and receiving data．For example，when you have a video chat with your friend，there is generally a 100 to 200 milliseconds （ 毫 秒 ） delay with 4 G，but 5 G will reduce（ 减 少 ） it to 1 millisecond or less，which is almost real time． With a 5 G network，the short delay in information exchange will allow driverless cars to run more safely，（7）　 　they will be able to communicate in real time and avoid（8）　 　into other cars．At the same time，5 G﹣enabled wearable devices will keep doctors constantly （ 持 续 地 ） updated on the health condition of their patients and the patients can be（9）　 　immediately if there's something wrong． Of course，there are some disadvantages．For one thing，5 G will not "travel" far．On 4 G networks，you can be 10 kilometers away from the nearest transmission base （ 传 输 基 地 ）．But 5 G will only cover about 300 meters．But engineers will never （10）　 　 solving these problems． （1）A．takes B．costs C．spends D．pays （2）A．what B．that C．who D．where （3）A．In B．With C．From D．On （4）A．is B．was C．are D．were （5）A．fastest B．fast C．the fastest D．faster （6）A．an B．the C．a D．/ （7）A．though B．as C．so D．but （8）A．knock B．knocked C．knocks D．knocking （9）A．tell B．told C．tells D．telling （10）A．put up B．give up C．cheer up D．call up 完形填空 2．（10分）Time is valuable in our life．But how many times have you （1）　 　 ， "