The professor entered, ________________.

　　答案：

　　1．After we had been shown around the city

　　2．Because they were tired out

　　3．If it was considered from this point of view

　　4．Though he was warned of the danger

　　5．and was followed by his students

　　Ⅳ.单句改错

　　1．The boy rushed into the room, his right hand held a book and his face covered with sweat.

　　________________________________________________________________________

　　2．Some of the people inviting to the party can't come.

　　________________________________________________________________________

　　3．As soon as she entered the room, the girl caught sight of the flowers buying by her mother.

　　________________________________________________________________________

　　4．The boy sat there, his right hand being raised.

　　________________________________________________________________________

　　5．More time to be given, we could have done it better.

　　________________________________________________________________________

　　6．Having marked with the month and the year, the book was put on the bookshelf.

　　________________________________________________________________________

　　答案：1.held→holding　2.inviting→invited　3.buying→bought　4.去掉being　5.去掉to be　6.Having marked→Marked或Having后加been

　　Ⅴ.语法填空

　　Williams: Hello, Mrs. Lincoln. I'm wondering if I could join the wonderful book club.

　　Lincoln: Of course. You should fill out the __1__ (apply) form first. You are Mr....

　　Williams: Williams, Tom Williams.

　　Lincoln: Sure. You work as.

　　Williams: I am a sales agent __2__ a big book fan. I am excited about joining the Club. What can we do here?

　　Lincoln: __3__ club members, we normally pick out one book together, everybody reads the book and then we gather and talk about it. And may I know __4__ is your favourite type of book?

　　Williams: Detective stories.

　　Lincoln: OK, we will take every member's preferences into consideration when __5__ (choose) books.

　　Williams: And how about membership fees?

Lincoln: __6__ (actual) we gather at my place and each time members bring