The real breakthrough took place when farmers began to cultivate crops along the floodplains of river systems. The advantage was that crops grown in such areas were not as dependent on rainfall and therefore produced a more reliable harvest.曹老师您好！在阅读过程中看到上文中的句...
Although the Supreme Court of the United States had prohibited
intentional racial discrimination in jury selection as early as the 188 case of
Strauder v. West Virginia, the practice of selecting so-called elite or
blueribbon juries provided a convenient way around this and other
anti-discrimination...
有一道单选题—Mum, must I be a teacher like you when I grow up.—No, you needn't. You can make your own ________.A．difference B．discussion C．discovery D．decision学生问make your own difference，做出你自己的特色和不同点还有理有据的跟我反驳道，make a differen...
▲动词see表示“看见”时的句式主要有（老师总结的）：
1. see sb / sth 看见某人或某物
I hope to see him soon. 我希望不久能见到他。
Tourists queue in thousands to see the tomb. 游客数以千计排着长队参观陵墓。
2. see sb (sth) do st...
What can be done to harness this interest and give the public the scientific background it needs to make informed decisions on subjects like acid rain, the greenhouse effect, nuclear weapons, and genetic engineering?(选自 Public Attitudes Toward Science by Stephen Hawking ) 参考译文：怎...
关于动名词的复合结构sb / sb’s doing sth的用法：sb指名词普通格或人称代词宾格，而sb’s指名词所有格或形容词性物主代词。只有该复合结构充当句子主语时，才只能使用sb’s doing sth，而不能使用sb doing sth.如：Would you mind me / Tom...
Tom is excited about his thirteenth birthday. "It's my birthday tomorrow. Can I have a birthday party?" He asks his mother. “You don't need to have a party this year, Tom. You had one last year, and don't call your friends to come to our home. I think they must be busy,” sa...
个人计算机的平均寿命已缩减至18个月左右，当然这并不是指鼠标或磁盘驱动器的磨损。The average life span
of personal computer has shrunk to around 18 months——and this has
nothing to do with worn-out mice and damaged disk drives.首先这是由并列连词and...
If you love life, do not waste time, for that's what life is made of.不理解的地方：1）for是表示原因，表示原因的for应该是从属连词，但为什么很多书或网上说这种表示原因的for又是并列连词呢？很不理解。2）对于that's what life is made of: that指...