每题语法请详细说明 可能答案有错 请指出1.the letter ____ by him hasn't been posted yetA written B was written (why A not B)2.He was often seen___ with the peasants.A working B to be worked(why A not B)3.They are busy ____ for the fin

每题语法请详细说明 可能答案有错 请指出1.the letter ____ by him hasn't been posted yetA written B was written (why A not B)2.He was often seen___ with the peasants.A working B to be worked(why A not B)3.They are busy ____ for the fin
每题语法请详细说明 可能答案有错 请指出
1.the letter ____ by him hasn't been posted yet
A written B was written (why A not B)
2.He was often seen___ with the peasants.
A working B to be worked(why A not B)
3.They are busy ____ for the final exam these day.
A preparing B with preparing(答案是A be busy with v+ing )
4.Soon we saw the thief ____ in the crowd.
A disappear B disappears C disappeard(答案是A 为什么 B不行)
5.He arrived early ____ tell us ____ go there.
A.in order to ,don't B so as to,not to(答案是D 为什么B不行强调解释下第二个横线)

每题语法请详细说明 可能答案有错 请指出1.the letter ____ by him hasn't been posted yetA written B was written (why A not B)2.He was often seen___ with the peasants.A working B to be worked(why A not B)3.They are busy ____ for the fin
1.the letter ____ by him hasn't been posted yet
A written B was written (why A not B)
此句谓语是“hasn't been posted”,“written by him”被动式做letter的后置定语,选B 句子中就存在两个谓语了.
2.He was often seen___ with the peasants.
A working B to be worked(why A not B)
doing与to do做动词不定式来讲,一般doing表状态也就是用在过去、现在的时态,而to do一般表示目的,用在将来的时态.而句中often一词是关键.
3.They are busy ____ for the final exam these day.
A preparing B with preparing(答案是A be busy with v+ing 不行吗?)
be busy doing 我们一般都是这么用,其他的不要记了,以防混淆
4.Soon we saw the thief ____ in the crowd.
A disappear B disappears C disappeard(答案是A 为什么 B不行)
一般的感官动词（see,hear,smell...）后直接用动词原型!
第五题请这位同学把选项发的全面一些,没有D选项.

1
wrriten by him
是 that was wrriten by him的省略
是定语从句一省略关系代词【引导词】和be动词的情况
如果是letter __was wrriten by himthe __ by him hasn't been posted yet
的话，该句会有两个谓语动词，这肯定不行啦
2和5
考的是同一个知...

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1
wrriten by him
是 that was wrriten by him的省略
是定语从句一省略关系代词【引导词】和be动词的情况
如果是letter __was wrriten by himthe __ by him hasn't been posted yet
的话，该句会有两个谓语动词，这肯定不行啦
2和5
考的是同一个知识点
see sb do something 和 see sb doing sth
都是表示看到某人做某事
但前者强调结果~~看到了整个过程
后者强调作用~~~考到的是个状态，正在做~~
没有see sb to do sth 这种说法
所以变成被动后be seen to do 这种说法也是错误的啦
第二题B错选A 被看到正在做
而第五题就是我们看到小偷逃跑的过程啦
3
两种搭配哦
be busy with +sth
be busy in+ doing sth=be busy +doing sth
5
其实英语很多时候都是再考固定搭配短语
这题也是 tell sb to do
否定形式
tell sb not to do
这个记住呀

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1.做后置定语~完整的说法是~the letter that /which was written
2.working做伴随状语~表示一种状态~to be 表示一种结果
3.这里是固定搭配 be busy（ in） doing sth~这里in 可以省略
4see sb do sth 表示目睹某人做事的全过程~单三形式肯定不对的~整个句子失态是一般过去式~
5.te...

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1.做后置定语~完整的说法是~the letter that /which was written
2.working做伴随状语~表示一种状态~to be 表示一种结果
3.这里是固定搭配 be busy（ in） doing sth~这里in 可以省略
4see sb do sth 表示目睹某人做事的全过程~单三形式肯定不对的~整个句子失态是一般过去式~
5.tell sb (not) to do 动词不定式的否定

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