10．Peter is helping set tables in the hall, where John’s birthday party ________.
8．Various efforts ________ in the past decades to protect the environment.
A．had made B．have made
C．were made D．have been made
【答案】D
【解析】考查时态和语态。句意：在过去的几十年里，为保护环境做出了各种努力。根据in the past decades可知句子用现在完成时态，efforts是句子主语，复数形式，和谓语动词make之间是被动关系，所以此处用现在完成时态的被动语态，故答案为D。
A．serves B．is serving
C．is being served D．has been serving
【答案】C
【解析】
考查时态。因serve与it(dinner)是动宾关系，要用被动语态；由问句中的are about to(即将) have dinner和答语Yes可知，已“在”供应dinner了，故用现在进行时的被动语态。故选C。
5．Please wear your best clothes on Monday, as your class photos ______ then.
A．will take B．will be taken C．have taken D．have been taken
【答案】B
【解析】考查时态和语态。句意：请在星期一穿上你最好的衣服，因为那时你们班将拍照。根据语境可知，动作发生在将来，并且是被动，故用一般将来时态的被动语态。故选B。
【答案】B
【解析】
【详解】
考查主谓一致以及be to blame的用法。句意：是自然灾害，而不是人为错误，应对这么多无辜人类的死亡负责。be to blame for…表示“应受责备，应对……负责”时，固定短语，因此排除A、C项；这里强调主语the natural disaster，是一个强调句，谓语动词应与主语保持一致，即与the natural disaster保持一致，因此用was to blame，故选B项。
一Not until our plan________ by the committee．
A．will be approvedB．approves
C．is to approveD．has been approved
【答案】D
【解析】
这题考查时态语态，our plan和approve是被动关系，用被动，选择A或D。A项是一般将来时，not until引导的是时间状语从句，不能用将来时，可以用一般现在时或现在完成时，选D。
英语被动语态用法详解
一、单项选择被动语态
1．––Why are you buying a new refrigerator?
––The old one ______ so many times that it’s not worth it any more.
A．has repaired B．is repaired
【答案】B
【解析】考查时态语态。句意：现在世界关注的焦点都在股票市场上，因为它们对世界经济已经产生了很大的影响。attention与focus之间为被动关系，Now提示用现在进行时。
4．—Are we about to have dinner?
—Yes，it ________ in the dining room.
6．105．The International Olympic Committee announces here that an in crease of 15 eventsto the program of the 2020 Tokyo Olympic Games.
A．will make B．will be made
3．Now the world’s attention ________ the stocking markets, as they have great influence on the world’s economy.
A．is fixing on B．is being fixed on
C．t was the natural disaster, rather than human errors, that ________ for the death of so many innocent people.
A．are blamedB．was to blameC．was blamedD．were to blame
C．has been repaired D．has been repairing
【答案】C
【解析】考查动词时态语态。句意：——你为什么要买一台新冰箱？——旧的冰箱已经被修过很多次了，它都不值得再修了。表示现在之前的动作对现在造成的影响用现在完成时，主语“冰箱”和“修理”是被动关系，故选C。
2．一When shall we start the restoration of the historic buildings?
—Not yet. It ________.
A．has been built B．was built
C．is being built D．had been built
【答案】C
【解析】考查动词的时态和语态。句意：——你搬进新家了吗？——仍旧没有，它仍旧正在建设。根据语境可知，It指代上文提到的the new house，是第三人称单数，与built是被动关系，用被动语态，结合句意，built这一动作表示正在进行的动作。故选C。
C．has been made D．had made
【答案】B
【解析】考查动词时态和语态。句意：国际奥委会宣布在2020年东京奥运会上将增加15个比赛项目。从年份2020可以看出是将来的动作，项目和增加是被动关系，故要用将来时的被动，故选B。
7．—Have you moved into the new house?