语法练习-让步状语从句.doc

语法练习-让步状语从句 一、单项选择（共15小题；共15.0分） 1.   scientists have done a lot of research on A (H1N1) flu, there are still some cases for further study. A. As B. Once C. If D. Although 2.   they are very tired, they feel happy because theyve finally finished their project. A. So B. Although C. If D. But 3. Though the old man didnt have enough money,   he gave a thousand yuan to the charity. A. / B. and C. but D. or 4. David didnt give up   he had failed in the experiment four times. A. if B. while C. though D. since 5.   Aunt Li is heavy, she still eats lots of meat every meal. A. Though B. Because C. Whether D. If 6.   it is very late,   my mother is still at work. A. Although; but B. Although; and C. Although; / D. Although; or 7.   Switzerland is very small,   it is the land of watch and it is very rich. A. Though; but B. Because; so C. Because; / D. Though; / 8.   she knew all her friends would be there, she didnt want to go, yet. A. Even if B. Because C. As soon as D. However 9. Although traveling by train is very slow,   its safer than by plane. A. but B. or C. / D. nor 10. No matter  , please follow the school rules. A. where are you B. where you are C. who are you D. who you are 11.   you do, nothing is difficult if you put your heart into it. A. What B. Whatever C. However D. Whenever 12.   the kid has no parents,   his grandparents look after him well. A. As though; / B. As though; but C. Even though; / D. Even though; but 13.   you do, dont miss the exhibition, for its so hard for me to get the tickets. A. Whatever B. However C. Whenever D.