有时为了避免重复，就要用动词do来代替前面出现过的动词，请问这个do是助动词还是实义动词。比如：On average, people who don’t smoke are healthier than people who do. 一般而言，不抽烟的人比抽烟的人身体健康。句中 who do 中的 do 是助动...
这是教美式发音的美国老师说的：It's tough understanding native speakers and having the confidence to join in the conversation.为什么不是It's tough to understand...and to have...?
As a photographer,
I have spent the last two years ___48___ (record) everything I discovered. 这是2023年高考英语的全国卷1中的语法填空句子。答案填recording。请问这里的现在分词短语recording...是什么成分？伴随状语还是方式状语？
Which do you enjoy ______ your spare time, playing cards at home or taking a walk in the park? 我知道可以填 to spend 构成目的状语。但我的另一个理解是 enjoy spending your spare time (in) which. which 代指 playing cards at home or taking a walk in the park 作(in) 的宾语。...
...You have to be prapared to give up your normal life.
prepare to do 是准备做某事的意思这个我知道，但准备放弃普通生活做这个动作的人是
you，那为什么用的是be prepared 被动语态呢？这里不是“你被准备”啊，动作的执行者
...
我在教材上看到这样一个句子：I don't know how
you put up with their constant quarrelling.（我不知道你是怎么忍受他们持续争吵的）我以前学的句型都是how do you...，比如 how do you know this book？，又比如 how do you think
of my job？我感到疑惑，how...