2019学年度北师大版选修8Unit22Environmental Protection课时语法精讲学案 设计

　　[语法·预备役]

　　用括号里动词的正确形式完成下面的句子

　　1．Recent reports warned that global warming ________ terrible climate changes.(cause)

　　答案：will cause

　　2．Scientists found that the temperature of the Earth ________ by greenhouse gases.(control)

　　答案：is controlled

　　3．Experts advocate that each person ________ their part.(play)

　　答案：play

　　4．One day, scientists believe that human beings ________ freely in space.(travel)

　　答案：will travel

　　5．The teacher said that two plus two ________ four.(be)

　　答案：is

　　[语法·讲座]

　　直接引语和间接引语

　　1．定义：我们转述别人的话时，可以引用别人的原话，被引用的部分称为直接引语；用自己的话转述别人的意思，被转述的部分称为间接引语。间接引语多构成宾语从句。

　　2．直接引语和间接引语之间的转换规则

　　(1)人称的变化

　　直接引语中的代词变为间接引语时，要根据句意、情景进行变化。

　　She said "I am busy."

　　→She said that she was busy.

　　她说她很忙。

　　He often says, "I'll do good for my country."

→He often says he will do good for his country.