1 They’re used for seeing in the dark.他们被用来在黑暗中照明.

1 They’re used for seeing in the dark.他们被用来在黑暗中照明.
be used for doing = be used to do 改写本句：________________________________ get/be used to doing… 习惯于做某事________________________________ used to do 过去常常… ________________________________ 2 George Crum cooked them for a long time until they were crispy.George Crum将它们炸了很久,直到它们变脆.
◎在肯定句中,until与延续性动词连用,表示“直到…为止”.I ________ ________ late in the afternoon.我一直干到下午很晚.◎在否定句中,until常与短暂性动词连用,表示“直到…才…”.The rain _______ ________ until midnight.雨直到半夜才停.
3 Dr Naismith divided the men in his class into two teams,and taught them how to play his new game.Naismith医生把他的学生分成两组,并教他们如何玩他的新游戏.
改为被动语态：The men in his class ______________ ______ two teams,and ______ ______ how to play his new game.
4 By the time I woke up,my father had already gone into the bathroom and I had to wait for him to come out.到我醒来的时候,我父亲已经进去洗澡了,我只好等他出来.
by the time … 到…时候.翻译：今天早晨我起床的时候,妈妈已经做好早饭了.__________ 5 Welles was so convincing that hundreds of people believed the story.Welles的话是如此具有说服力,以至于成百上千人相信了他的话.
本句中that从句是肯定式,可以和enough for sb to do sth转换.改写本句：____________ ◎that从句是否定式时,常用too...to...转换The little girl was so tired that she couldn’t walk farther.=The little girl _______________________walk farther.
6 She was thrilled,because she really wanted to get married.她很激动,因为她真的想结婚.◎get married表示动作；be married表示状态 你能完成下面的同义句吗?
Lucy married Robert two years ago.= Lucy has been ________ ________ Robert for two years.=It is two years since Lucy and Robert ____ ___.=Two years ___ __ since Lucy married Robert.◎问对方“婚否”时,应说 ________________?
练习 I基础知识 1 用所给动词的正确形式填空.
1) By the time we got home,my mother __________ (go) out for a walk.2) His father was ill.He had to ________ (stay) at home today.3) _______ you ever ________ (see) that man over there,Alice?
4) Don’t forget __________ (close) the windows when you leave your room.5) The young man asked the girl __________ (marry) him.6) English _______________(speak) in the world widely.

你好,很高兴为你解答.
1、They're used to be seen in the dark.
2、do it , didn't stop
3、were divided into , being taught
4、By the time I got up this morning ,my mom had cooked the breakfast.
5、Welles was so convincing enough for hundreds of people to believe the story.
6、married with ,got married, has gone ,Have you been married?
1)had gone 2)stay 3)Have been 4)to close 5)to marry with 6)is spoken
望采纳~