二级英语

a：名词前是否缺冠词。如：on (a) sunny morningb：是否用不及物动词带宾语。如：Don’t look (at) me that way。c：不定式符号“to”是否不该省。如：He was often h...

短文改错：短文改错一般给出一篇100余字的短文，设10个小题，是一种较全面考查考生英语知识水平及能力的题型，其宗旨在于测试考生发现、判断、纠...

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Time travel is clearly a trickier proposition than space travel, though. Put simply, Einstein’s idea was that the universe has it’s own “time”, and these vary as objects move. The faster an ob...

感官动词 + doing/to do感官动词 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel + do 表示动作的完整性，真实性；+doing 表示动作的连续性，进行...

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If it were possible, however, it would present some pretty knotty paradoxes... For example, what if someone or something traveled back in time ensuing future? And have you heard the one about the time...

The experiment was replicated in 1996 with advanced technology, and it was proved again--with an even bigger time difference proves that not only is time “warp-able”, but Einstein was arguably the...

In 1971, after Einstein’s death, two scientists were able to carry out a crucial experiment. They used two atomic clocks, synchronized them, and placed one on a plane, while the other stayed in the ...

regret doing/to doregret to do　对要做的事遗憾。　（未做）regret doing　对做过的事遗憾、后悔。　（已做）I regret to have to do this, but I have no choice.我很遗憾...