语法图解
探究发现
①What we find out from space research is important for us on Earth.
②It's wellknown that the ancient Chinese invented the rocket.
③We think it probable that he is dead.
④The teacher showed us the controls of the spacecraft and explained how gravity worked.
⑤They insisted that everyone (should) come to the party.
⑥The proposal that we (should) import more equipment from abroad is to be discussed at the meeting.
⑦I have no idea when she will be back.
⑧The question remains whether they will be able to help us.
⑨The problem is who we can get to replace her.
[我的发现]
(1)①②句为主语从句，③④⑤句为宾语从句，⑥⑦句为同位语从句，⑧⑨句为表语从句。
(2)②③⑤⑥⑧句中的引导词只起连接作用，在从句中不作成分，①⑨句中的引导词为连接代词，④⑦句中的引导词为连接副词。
(3)②③句中使用了it作形式主语或形式宾语，而真正的主语从句或宾语从句后置。
(4)⑤句中的that可省略，其他句中的that一般不可省略。
(5)⑤⑥句中的从句使用了虚拟语气。
