句型公式:it is clear that...
(1)It is clear that...句型中,it为形式主语,that从句为真正的主语。常用于这种结构的形容词有:clear,obvious,certain,important,possible,natural,interesting,likely,unusual等。
(2)在It is necessary/important/strange/surprising/unthinkable/unbelievable/incredible+that...中,从句中的谓语动词常用“should+动词原形”,should可省略。
(1)It is obvious that she is popular with students.
很明显,她很受学生们的欢迎。
(2)It is important that we (should) discuss the plan.
重要的是我们该讨论这个计划。
多维训练
同义句改写
(1)It is necessary that he should be sent there at once.(改为简单句)
It is necessary for him to be sent there at once.
(2)Obviously,we don’t want to spend too much money.(改为it作形式主语的复合句)
It is obvious that we don’t want to spend too much money.
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Some experts see our future in virtual reality—the use of computers with sounds and pictures that make you feel as if you are in a real situation.有些专家看到了虚拟现实中我们的未来——计算机通过声音和图像使你感到仿佛置身于一个真实的空间。
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