..., Mom did all the writing. He just sent checks and a little
note about how great his lawn looked now that I wasn’t playing football on it.老师好，now
that 应该分开看还是合在一起看？如果合在一起对待，now
that “由于”，句子理解无障碍。但是段落意思是“...
...iring power as a public speaker. To write and speak well gave a public man great influence in those days. Many of the measures of the government were determined by the action of great assemblies of the free citizens, which action was itself, in a great measure, controlled by the harangues of orators...
And
itis providing to be an increasing powerful tool in encouraging people to
purchase. 这是北京高考真题阅读理解中的一句话，这里的 itis providing that是什么用法， providing在这里该怎么理解呢？
If necessary (=If itis necessary), ring me at home. 如果必要，可往我家里打电话。
这里的 if necessary 是个省略句，它等于 if itis necessary，我想问，可以等于 if you are necessary 吗？因为后面是祈使句，省略的主语应该是 you，对不对？
Itis the north of the country, where the lands rise toward the Himalayas, that perhaps has the greatest potential as a vast, protected landscape. Much of this part of the country is essentially unexplored - at least by biologists - and itis here where there are undoubtedly lots of discoveries to b...
...is likely
to produce good results is not demonstrable until such time as a great deal
more data has been accumulated illustrating the nature of the supposed
situationally-conditioned linguistic distinctiveness.(D. Crystal: Direction in
Applied Linguistics）[汉译略]笔者认为：含有until such...
...he most persistent things I see people get wrong about the concept is that it equates to being “nice.” one of the most persistent things 名词短语做主语 I see（that 省略） people get wrong about the concept 宾语从句作 定语is （is that it......）是系动词（谓语动词）...