[请益] 数题文法请教

楼主: meng3523 (矿泉水)   2019-07-17 15:52:44
The man sitting next to me on the plane was very nervous. He (hadn’t flown) b
efore.
括号中为什么不能用didn’t fly呢?
The flies were then spread onto a piece of white paper _________ and counted.
答案是to be examined 请问为什么不能用being examined呢?
(Despite)these major operations against cybercrime, we are still seeing a br
azen and thriving underground economy in the region.
请问这个句子括号中为何用 Despite 呢?
这样不是没有连接词吗?
没有连接词的前提下,逗点前的动词一个是against 后面则是be动词are 这样文法不是就
不符合分词构句了吗?
The US and Canadian governments have always (been committed to protecting) the
ir citizens from cybercrime by continuously beefing up their legislative and e
nforcement efforts.
请问括号中为什么 committed 要加 been 这样不是变被动式吗 (被承诺?) 为何不是
主动 另外to 后面接的protect为什么要加ing呢?
问题有点多 麻烦各位帮我解答QQ
谢谢各位了
作者: jtmh (:))   2019-07-17 16:36:00
Despite 是介系词,后面接受词,against 不是动词是介系词,可以查一下 despite 的用法。be committed to + N 是固定用法,若后面接动作则加 ing 变动名词,这也可查一下用法。第二题撒到白纸上要做什么?检查并计算,表用途用 to+V
作者: cuylerLin (cuylerLin)   2019-07-18 21:53:00
第一题前一句是过去式,第二句又说before,所以要选比过去式更早的过去完成式比较恰当(context的合理性)

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