1. 选D。关键是escape 的用法,escape 既可以做不及物动词(如A lion escaped. It escaped from its cage.)也可以做及物动词(He did this only to escape punishment/being punished.)这里three officers是杀的对象,所以是被动的,因此用escape being killed.
2. 这个句子由两部分组成。 英语的句子讲究逻辑一致。to learn to speak English well的主语应该和主句的主语一致,因此应该选C.
3. 应该选B. 不定式的主动形式表被动。They (指那些问题)were difficult to answer. (主语是answer的宾语。)同理,That question is difficult to answer.那个问题不容易回答。Chickens legs are nice to eat.鸡腿很好吃。
1.escape 后跟doing。又因为此处表示被动,所以用escape being killed
2.此题的主语应该是人,你可以把句子的第一部分放到后面来理解:One needs much practice to learn to speak English well.
3.答语的they代指many questions,所以首先排除D。D中的they指人。B项正确,你可以记住一个固定结构:it is +形容词+to do
1. 应选D 参考 escape being punished 逃脱惩罚
2.C to learn to speak english well 的主语也是one
3.D中主语they主语不明确 ,它是只问题本身呢 还是回答的人呢 不知道
1.escape from doing sth 所以A是错误的
2.这个句子,人是主语,是主动的,而A是被动的,所以错误
3.B sb were difficult to do sth. A 没这样的说法的,语法错误,D 也是