①有消息传来说普京(Putin)再次当选(elect)总统。

　　Word/News_came_that_Putin_was_elected_president_again._

　　②A saying goes that practice makes perfect.

　　熟能生巧是谚语。

　　2．名词suggestion, order, demand, command, request, desire, proposal等后的同位语从句要使用虚拟语气，即从句谓语用"should＋动词原形"，should可以省略。

　　He made a suggestion that I (should) start right now.

　　他提出建议我应该立刻动身。

　　即时演练3

　　单句语法填空

　　①He gave orders that the work (should)_be_started (start) immediately.

　　②Our teacher gave us some advice on how we (should)_use (use) the computer.

　　3．在肯定句中，名词doubt后的同位语从句用whether引导；在否定句或疑问句中，doubt后的同位语从句用that引导。

　　I have no doubt that he will win the game.

　　我坚信他会赢得这场比赛。

　　There's some doubt whether John will come on time.

　　对约翰是否会准时到有一些怀疑。

　　即时演练4

　　选词填空：whether，that

　　①There can be little doubt that this kind of class can help the gifted children to graduate earlier.

　　②I have some doubt whether she will come on time.

语法点四 同位语从句与定语从句的区别

从意义上看 从引导词上看 作用相

当于 对先行词

的作用 that wh­类引导词 同位语

从句 名词 解释，说明 无意义，不作成分，不可省略 有意义，作成分，其前无意义相当的先行词 定语

从句 形容词 修饰，限制 that指代先行词，在从句中作主语、宾语、表语，作主语时不可省，有时可用which代替 有意义，作成分，其前有意义相当的先行词； whether, how, what等不能用来引导定语从句