Period Ⅴ Grammar & Writing用所给词的适当形式填空1．This part of the seabed ______________(explore) many times.2 ． Much useful information about these planets ________________(collect) since 1971.3．Much parking space in cities ______________(save) by using small cars.4 ． They say that some icebergs in the Far South ______________(pull) to Kuwait for drinking purposes in the future.5．These questions ______________(discuss) at the next meeting.6．A piano concert __________(give) here last Friday.7．Can the magazine ______________(take) out of the library?8．Planes，cars and trains ________(use) by business people for travelling.9．The bike ____________(put) here，it’s dangerous.10．Vegetables，eggs and fruits __________(sell) in this shop.现在完成时的被动语态现在完成时的被动语态表示到现在为止某事已经被完成或被做。这种语法项目既要表示现在已经完成又要表示被动的含义，因此很多同学在具体运用当中容易顾此失彼，难以把握。运用现在完成时的被动语态时应掌握以下几个问题：1．构成现在完成时的被动语态的构成为：主语＋have/has been ＋过去分词＋其他。2．各种句式的变化下面以动词 invite 为例，列表说明现在完成时的被动语态的句式变化：肯定句否定句I have been invited.He/She has been invited.We/You/They have been invited.I have not been invited.He/She has not been invited.We/You/They have not been invited.疑问句简略回答肯定回答否定回答 一般疑问句：Have I been invited？Has he/she been invited？Have we/you/they been invited？特殊疑问句：Who has been invited？Why have I been invited？When has he/she been invited？Where have we/you/they been invited？Yes，I have.Yes，he/she has.Yes，we/you/they have.No，I haven’t.No，he/she hasn’t.No，we/you/they haven’t.3.使用的场合(1)表示一个被动的动作发生在说话之前，强调对现在造成的影响或结果。Thousands of man － made satellites have_been_sent_up_into_space by many countries.许多国家已经发射了成千的人...
