3．现在完成进行时有时含有某种感情色彩；现在完成时一般表示平铺直叙。

　　I have been waiting for you for two hours.

　　我一直等了你两个小时。(表示不满)

　　I have waited for you for two hours.

　　我已经等了你两个小时。

　　[即时训练2]　完成句子

　　①He has developed a good habit(养成了好习惯) of independent learning.No wonder he ranks first in every exam in his class.

　　②Now that Lucy is out of work, she has been considering going back(一直考虑回去) to school, but she hasn't decided(未决定) yet.

　　Ⅰ.单句语法填空

　　1．It has been raining(rain) for a week.How long do you think it will last?

　　2．Up to now, the gifted child has won(win) three national prizes in music.

　　3．Tom has been working(work) in the library every night over the last three months.

　　4．I didn't go to see the film last week because I had seen(see) it twice.

　　5．I have been looking(look) for a job for three months, and this is my first formal interview.

　　6．I have been repairing(repair) my washing machine the whole morning.I must get it done before lunch.

　　7．I first met Lisa three years ago.She was working(work) at a radio shop at that time.

　　8．He has been coughing(cough) a lot recently. He ought to give up smoking and go to see a doctor.

　　9．He has been listening(listen) to English programs since he came to the US, so he has made(make) great progress.

10．I have known(know) Miss Huggins for several years. I have been reading/am reading(read) her latest novel, but I haven't finished it.