请问这2个句子是什么句？它们的句子成分分别是怎样的呢？1. What king of advance planning could you do before going to a party in a foreign country？2. What encouraging noises and gestures can you make when you are having a conversation in Chinese？
In the late 1990s, the first web browsers made networks, which had been for science labs and the military, accessible to any of us, giving birth to the modern internet.其中which引导的非限制性定语从句怎么理解呢？
...文；so we'll start by going back thousands of years. Most ancient cultures had weather gods, and weather catastrophes, such as floods, played an important role in m...
... many of us, these casseroles are as much a part of childhood as Halloween and jump rope. 句中的much为什么可以用在a part of childhood前面？去掉much不是也可以吗？不懂的是，这种比较句中的much从语法上来说，究竟是什么词性？又起什么作用，是什...
...is this desert plain, a dry lake bed in California surrounded by mountains and on the desert floor these huge rocks, some of them hundreds of pounds.这是托福TPO4听力中的一段话，其中on the desert floor these huge rocks感觉不通顺，没有谓语或者非谓语，these huge rocks是...
原句：I have lived in cities all my life and when I am at home I usually take
the subway or bus.1. 为什么该句前面用现在完成时have lived？2. 为什么是用city复数？而不是用单数city呢？3. 为什么是take the subway or bus用定冠词the的，而不是用不定冠词a呢...
The physicist has made a discovery , which I think is of great importance to the progress of science and technology. 为什么which 引导的非限制性定语从句中会出现think 和 is 两个谓语 ，想通过句子结构分析了解为何会存在两个谓语。