Some scientists recommend that nano particles be treated as new chemicals with separate safety tests and clear labelling.选自剑桥雅思10T4 S4.请问这里为什么是be treated 而不是is treated 或是 are treated?
Mr. and Mrs. Smith request the pleasure of Mr. and Mrs. Bush’s company at dinner ______. A. at West Lake Restaurant, on Wednesday, July 2nd, at 7:00 B. on July 2nd, Wednesday, at 7:00 at West Lake Restaurant C. on Wednesday, July 2nd, at 7:00, at West Lake Restaura...
...位网友在英语答疑网提了一个问题,是关于in simple language的用法问题,我顺着这个问题查了一下language的用法,但在《牛津高阶英汉双解词典》(第四版)下面了以下用法:4. [U] words, phrases, etc used by a particular group of people 术语;行...
以下两道题均考查when, while, as的用法区别:1. The boy smiles _______ the teacher praises him. A. when
B. while
C. as
D. since2. _______ he was sent to prison, the children were taken into care.
A. When
B. While
C. As
D. Since凭感觉应该是选when,但说不出理由,请...
... Land was previously occupied by chemicals plant (now demolished).例句一的 electronics 用复数,就像 the American electronics industry. 但例句二 chemicals plant 一定要用复数吗? google上找到的例句多半是 chemical plant.plant 是可数名词,为何不说 by a chemicals pl...
...opulation.请问老师:1.红字部分是否可看做一个整体作句子的成分?作什么成分?2.up to 6 million years作什么成分?up在这里是什么词性什么用法?3.at least 是副词 在这里修饰谁?4.这里为什么要用surviving for... 而不是 to survive for...