...ases since an agreement in 2012 by pharmaceutical firms to donate billions of dollars’ worth of drugs. “billions of dollars’ worth of drugs”为什么要加worth of？直接说 billions of dollars’ drugs不行么？谢谢老师。
... we will never see.That's because they look black—although they give off light,the light can never reach us. They are the surprising dead stars called the balck holes. 请问：surprising 在此会不会多余？是什么意思？2. Scientists think that there has been life on the earth f...
Reduced sounds are all those extra sounds created by an absence of lip, tongue, jaw, and throat movement.They are a principal function of intonation and are truly indicative of the American sound.结构：be + indicative(adj) + of + 名词He has lived in Beijing all his life - Indicate a period incl...
表示“因缺乏……”时，lack of 前面可用介词 for, because of, through 等介词，如：
The plants died through lack of water. 由于缺水那些植物枯死了。
I can’t buy it because of my lack of money. 我不能买它是因为没钱。
The theat...
If tap water were as dangerous as some people think，____ would be getting sick.A.a lot of more usB.more a lot of usC.a lot of us moreD.a lot more of us请问怎么选？
...en epidemics return, she said, "Don't worry, scientists will find some way of using computers." Such well-meaning people just don't understand.这段话的倒数第二句“scientists will find some way of using computers”被翻译成“科学家将会通过计算机找到一些方法”，接近...
There are 640 muscles and 206 bones in the body, but only 284 and 72 of those are of sufficient size for our grafits.请教老师：1)系动词are后面的of sufficient size为什么要有of？of在此表达什么含义？2)是否可以去掉of，或者直接变为but only 284 and 72 of those are su...
能不能说 in hope of…/that…和in the hopes of…/that…
■倪肖丁（西安） 葛传槼先生的《英语惯用法词典》指出：in the hope
of …ing和 in hopes of…ing意思相同，in the hope
that…与in hopes that…意思相同。注意用了the便用单数形式hope，不...
题目：A large part of a person's memory is ______ words and combination of words.A. by means ofB. in terms ofC. in connection withD. by way of这道题答案选B， 想请问老师为什么不能选A?而且选b 的话，这句话应该怎么翻译呢？是在表达“人是根据词和组词...