unit 4 astronomy:the science of the stars
单元练测卷（一）
（时间：100分钟 满分：120分）
ⅰ.单项填空（共15小题；每小题1分,满分15分）
1. —i’m afraid that the manager will ask me to leave the company.
—________!it can’t be that bad.
a. good luckb. cheer up
c. no problemd. no doubt
2. his wife gave ________ birth to a baby girl last week, which gave him ________ great pleasure.
a. the; theb. the; /
c. /; thed. /; /
3. i admire stephen hawking greatly, whose ________ about black holes has a great effe
