Ⅰ.语法填空
1．The fact ________ a planet exists outside our solar system encourages the hope ________ other solar systems exist.
答案：that; that 此句的主干是The fact encourages the hope.。空格处引导同位语从句，从句补充说明fact, hope的内容，空格处不在句中充当任何成分，故用that。
2．We hadn't settled the problem ________ would be sent to take charge of that chain shop.
答案：who who引导同位语从句，该从句进一步解释problem的内容，who在从句中作主语。
3．Recently he has been always having an idea ________ he will use the pocket money to buy flowers for his mother's birthday.
答案：that that引导同位语从句，该从句补充说明idea的内容，that在从句中仅起连接作用。
4．We all agree to his suggestion ________ we organize a football club.
答案：that 句意：我们都同意他提出的我们组织一个足球俱乐部的建议。that引导同位语从句，该从句用来解释suggestion的具体内容。
5．The committee made the order that more buildings ________(build)．
答案：(should) be built order表示“命令”，其后的同位语从句要用虚拟语气，从句谓语要用“should＋动词原形”，should可以省略。
