He held on to the back of a chair (他抓住椅背)(新牛津词典例句)Hold tight to the railing, or you'll slip and fall.(章振邦新编高级英语语法384页)我想不通，为什么以上2个例句，hold后面要用介词， 为什么不是直接抓住某个东西，加了介词to为何？
'Rest', in terms of muscle relaxation and so on, can be achieved by a brief period lying, or even sitting down. The body's tissues are self-repairing and self-restoring to a degree, and function best when more or less continuously active.参考译文：“休息”，从使肌肉得到放松等方...
"...A
military life is not what I was intended for, but circumstances have now made
it eligible. The church ought to have been my profession -- I was brought up
for the church, and I should at this time have been in possession of a most
valuable living, had it pleased the gentleman we were speaking ...
...ies can put a round shape in a round hole from around
one year of age, but it will be another year before they are able to do the
same with less symmetrical (对称的) shapes. This ability to recognize that a shape will need
to be turned in a specific direction before it will fit is called an
“al...
On 13 April, the Titanic was sailing at full speed towards New York. The captain,who ___ warnings about icebergs all day, had dismissed the warnigns as they ____. A. had received; had arrived B. had received; arrived C. received; had arrived D. received; arrived 请问...
There were hardly any trees on the island and there was no water, but this did not prove to be a problem.原翻译为“……但这不算什么问题”，不应该翻译成“这被证明没有问题”吗?原句中为什么没用被动语态 this was not proved to be a problem?
...t understander what Wells thinks the greatness of a novel has to do with the length of the time he has spent reading it.请问这句话中 what 引导的从句是宾语从句吗？如果是的话我找不到 what 在从句中指代的成分。我个人认为句子的结构是：I simply cannot...
...）是可数名词，则通常用复数形式。如：An exchange of opinions is
helpful. 相互交换意见是有益的。The exchange of prisoners
during a war is unusual. 战时很少交换俘虏。There was a brief
exchange of glances. 匆匆地互递了个眼色。当然，如果是不可数名...
The idea that modern art can only be seen in museums is mistaken.Even people who take no interest in art cannot have failed to notice examples of modern sculpture on display in public places.1.这里不是对现在事实的一个陈述吗，为什么用cannot have failed，难道想表达“之前...
This is a moving spectacle, for crowds of people stand on the shore watching the lanterns drifting away until they can be seen no more.老师，watching the lanterns drifting away里的the lanters drifting away是动名词的复合结构作watching的宾语吗，这种写作手法有什么特别用...
...ors (animals that kill and eat other animals) in a news fishery is reduced on average by 80% within 15 years of the start of exploitation.红色部分的15年 “指的是开采的开始这一整个阶段一共15年” 还是 “开采开始后的15年呢”?
... past year was, in essence, in a statistical tie with 2016 for the hottest on record, with temperatures driven upward by the warming effects of human activities that spew carbon and other greenhouse compounds into the atmosphere.从本质上讲，过去的一年与2016年是有记录以来最热的...
The house he built was a spacious one. There was a courtyard in front of the place and two gardens in back, one to provide vegetables, one to delight the eye in the formal Japanese fashion. One of the two living-rooms was American, with easy chairs instead of tatami, and so were the kitchen and bath...