16.He_____,but I dived in and rescued him.

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16.He_____,but I dived in and rescued him.
A.was drowning B.had drowned C.drowned D.has been drowned
为什么选A不选D?
18.today more and more people are becomingconcerned about the way nature________.
A.ruins B.is ruined C.is being ruined D.is ruining
为什么选C不选B,

16题选A,因为意思是“他正出现了呛水的状态”,但是,“我把他救了”.如果选D的话,啊,亲,除非你是神仙,否则,你怎么可以把一个“已经淹死了的人”救活呢?
A和D的区别就是时态的区别.A表示“正在发生的事情”,D表示“已经发生了的事情”.
18题选C,时态前后的一致性.前面说的是“越来越多的人们正在变得关注”,关注的是“自然正在被破坏”的方式.
再问：那个我第一题打错了，想问的是为什么不选B.had drowned 求高手帮忙
再答：先从词意上理解。这个词，可及物也可以不及物。也就是说，被动时态和主动时态都有“淹死” 的意思。请注意，解释中用的是“drowns or is drowned”。说明，主动、被动都可以。因此，B与D是同样的。在一组单项选择题中，有两个答案是一样的，当然必须都排除。第二，B与D都表示“淹死”了，没救了。只有A表示“正在呛水”，用法见最后的举例。因此，只能选A。 [词义解释] drown vt.淹死；浸没；麻痹某人对……的意识；（一声音）淹没（另一声音） vi.淹死 When someone drowns or is drowned, they die because they have gone or been pushed under water and cannot breathe. 看到了吧。B或D，意思差不多，可以说是一样的。就凭这一点都可以被排除。举例： The swimmer dived into the river to save the drowning child. 这位游泳者跳入河里去营救那个溺水的小孩。

No one in our class but Tom and I (agree) with him. 这句话中的(ag i went to Ted`s house and asked to see him but he wasn`t in. a little boy was drowning but that policeman dived in the ri he dived () into the river to save th girl and i was () move I‘m_____(not like) coffee.but he_____(like) tea. I love him,but only silently blessing him,and looking forwar 1、I stopped and smiled when I saw him ,but he ______ me and I Love him but where is him In the years ,I followed him here and there I met him and his mother ( )( )in the supermarket yesterday. I believe myself I' ll kill him and you but you don't worry I _____(tell) him the thing as soon as he_____(return) home