Unit 3 The world of science 现在完成时的被动语态 一、单项选择 1．Every possible means _____ to save the wounded soldier up to now. A．tried B．is trying C．has been tried D．tries 2．Although many measures _____, the world's economy is still going down. A．were taken B．are taken C．will be taken D．have been taken 3．-- Excuse me, sir, can I take this road to Tianjin Railway Station -- Sorry, you'd better not. A bridge to it _____ at the moment. A．is being repaired B．has been repaired C．will be repaired D．is repaired 4．More than a new invention like 3D printers _____to make replacement hearts and bone parts in the past few years. A．is being used B．are being used C．has been used D．have been used 5．Up till now, the passengers who had close contact with the three sick people _____ in hospital under medical observation. A．put B．has put C．have been put D．being put 6．Three-fourths of the homework _____. A．has finished B．has been finished C．have finished D．have been finished 7．This famous play Hamlet _____ into at least ten different films over the past years. A．has been made B．has made C．is made D．was made 8．People’s lives _____recently. A．have changed B．have been changed C．changed D．are changing 9．—You’re so excited. What’s up —I ____as a volunteer in the coming Winter Olympic Games. A．had been accepted B．have been accepted C．had accepted D．have accepted 10．—Why do you look so worried —An earthquake broke out in Jiujiang. The whole research _____ uncompleted since. A．has been left B．left C．was left D．has left 11．-The window is dirty. -I know. It _____ for weeks. A．hasn't cleaned B．didn't clean C．hasn't been cleaned D．wasn't cleaned 12．A new kind of PC _____ with more functions. A．have been built B．have built C．has been built D．has built 13．Up to now, he _____chairman of the Students’ Union twice in our school . A．has selected B．elects C．is selected D．has been selected 14．A new technology combining 5G and facial recognition _____ into use in Beijing Daxing International Airport since September 2019. A．put B．was put C．has put D．has been put 15．It is the first time that such a grand military parade_____ in china. A．is held B．has been held C．had been held D．was held 16．When and how to restore daily life_____yet. A．has not been decided B．are not decided C．is not decided D．have not decided 17．A lot of new houses _____ in that village since the beginning of this century. A．made B．were made C．have made D．have been made 18．—This is the third time he _____ for his voluntary work for the Red Cross． —No wonder he is so excited! A．has praised B．had been praised C．has been praised D．had praised 19．Huge quantities of fresh water _____ there since the serious drought in the southern parts of china. A．have sent B．has sent C．has been sent D．have been sent 20．Till now, three films _____ in our village this month． A．have shown B．have been shown C．were shown D．will be sho ... ...
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