【正文】
ercise. It is reported that It is suggested that 據(jù)說 …… 眾所周知 …… 據(jù)報道 …… 據(jù)相信 ……。 . remains a mystery. 他為什么做那件事依然是個謎。 What I need ______ money. What I need ______ books. is are Who you will go with ______ Lucy. Who you will go with ______ the twins. is are whether 引導的主語從句 ,如果用了 形式主語 it ,引導詞 whether 可以換成 if , 如果 whether 從句在句首或后面有 or not 時 ,不能換成 if. Whether they will sell the house is not decided yet. It is not decided yet whether they will sell the house. 不可用 if替換 可用 if替換 練習 1. ___ leaves the room last ought to turn off the light. A. Anyone B. The person C. Whoever D. Which 2. ___ he has bee a rich man is known to all in our town. A. Because B. That C. / D. What 3. ___ I need is more time. A. That B. What C. / D. Which 4. ____ we’ll go camping tomorrow depends on the weather. A. If B. Whether C. That D. Where 5. ___ Jack looked so excited is not clear. A. That B. Where C. when D. why 6. ____ that we will go shopping this afternoon. A. It is a good idea B. It is a pity C. That is a good idea D. That is a pity 7. It was requested that everyone _______ a speech at the meeting. A. made B. makes C. be made D. make