N-COUNT 杂质;不纯物质 Impurities are substances that are present in small quantities in another substance and make it dirty or of an unacceptable quality.and make it dirty or of an unacceptable quality.是第二个省略关系代词的定语从句还是与 Impurities are substa...
...".(这一句是作业里的，答案是expressions)2. The expressions they use might depend on whom theyare speaking to or how well they know each other.（这一句是书本里的）第一次出现用a/an,第二次开始用the, 但是，这两句话之前从来...
Officials told Japanese media they did not want Abe to be seen to be getting privileged treatment, and cited the backlash the UK prime minister, Boris Johnson, has faced for clearing his senior adviser of breaking UK quarantine rules.句中of breaking UK quarantine rules在句中做什么成分？...
Are
there any places in China
with rich biodiversity like the Amazon rainforest? What arethey? Introduce one
to the class.请专家老师分析一下introduce 的用法。我查了一下英英词典，好像没有一条是符合此句用法的。
... robots.
Their numbers tumbled in 2020, but because people travelled less, not because
of driverless taxis.我阅读少，第一次见到这种情况。一般是不用but的，或者用not...but...。原文这样写是为了强调not because of
driverless taxis吗？谢谢老师！
...ain.Many people enjoy
relaxing music in the evening prior to going to bed. They say it can play a big role in calming the brain enough to sleep.
While the validity of the idea is still being assessed, the lowered stress can
even be tied back to blood pressure. Similarly, according to researchers, li...
...o admire about the Inca civilization. The
first ______ the roads and paths they built to connect their important cities.这是摘自 2019版人教版高中英语新教材必修一的
Unit 1（p27）的句子。请问空格处应填 is 还是 are？为什么？
...licensed by a self-policing private guild failed to pass qualifying exams, they in addition falsified their references. A. they in addition falsified their references B. they had their references falsified in addition C. but they had also falsified their references D. they had al...
...一般现在时态，仿佛他们还活着We use the present tense,as if theyare still alive.这句话里面的方式状语从句as if按道理说应该使用虚拟语气啊？因为人已经死了We use the present tense,as if they were still alive.这句话是我在一本语法书里面看到的...
...if you’re a teacher, in your classroom. Unfortunately, that child thinks they're bad, instead of realizing that they're just a kid who has a problem with bad behavior. Help that kid out. Go buy a cheap bag of peppermints and take the time to notice that child when they get someth...
关于部分否定的语法内容中有人举例如下：Not all Americans like hamburgers. 不是所有美国人都喜欢汉堡包。All Americans don't like hamburgers. 不是所有美国人都喜欢汉堡包。请问这两句意思一样吗？另外，第二句（用all...not...）常用吗...