Unit 3学案3

Unit 3 学案　　

重点语法  　　

  在使用被动语态时,有些特殊句型的被动语态需要注意:　　

     1. 在主动语态中,如果感官动词如:see, watch, hear, notice, observe等后面的宾语补足语是动词,这个动词前往往不加to, 但在被动语态中要加to。例如:
     We notice Tom steal out of the room, carrying something in his hand.变成被动为:Tom was noticed to steal out of the room, carrying something in his hand. 　　

     2. 不能使用被动的动词或动词短语,常考的有:"发生"类:happen, occur, come about, take place, break out; "所属"类:have, own, fit, exist(存在),belong to;"感官动词":feel, look, sound, taste, smell; "用完,耗尽":run out, give out。例如:
     Great changes have taken place in 　　China　　 in the past twenty years.
     I won’t go to that restaurant again.
     The food there tasted so terrible.
     Unfortunately, all the food had given out. 　　

     3. It is / was +过去分词+ that从句It is / was said / reported / hoped / believed / considered / suggested / known ... + that从句。例如:　　

 It is suggested that all the work should be finished before dark.
     It is reported that nearly 20 workers died in the explosion.
     It is well known that success lies in hard work.