现在进行时：
1．构成：is / am / are + 现在分词
2．功能：
（1）表示现在正在进行的'动作。
?. Thekettleis boiling. Shall I make tea?
?. Don't you think you eat too much? You're putting on weight.
?. The workers are building a new bridge across the river.
（2）表现阶段正进行的动作。
?. He is taking physics thissemester.
?. We are preparing for our final examination this week.
（3）go, come, leave, arrive, land, meet, die, start, return, join, etc. 用于进行时态时表示即将开始的动作。
?. Look! The bus is coming. 看！车来了！
?. The old man isseriouslyill, and he is dying.
?. Alice is leaving for Beijing with her mother.
（4）与 always, forever, continually, constantly 等副词连用，表示说话人带有感情色彩：赞赏或厌恶。
?. He is always thinking of others.（他总是想着别人。）
?. The boy is continually making noises.（这男孩不断地发出吵闹声。）
?. The teacher is constantly (always)criticizingher for being late.（老师一直在批评她迟到。）
（5）下面表示状态、感觉、情绪、精神活动的动词不可用于进行时。
（此条戒律请背 10遍！！！）
believe（相信），doubt（怀疑），see（看见），hear（听见） ，know（知道），understand （理解），belong（属于），think（认为），consider（认为），feel（觉得），look（看起来）， seem（看上去），show（显示），mind（介意），have（有），sound（听起来），taste（尝起来）， require（要求），possess（拥有），care（关心），like（喜欢），hate（讨厌），love（喜爱）， detest（憎恨），desire（意欲）
【简单记忆】
● 永远不要说I'm believing...或He is seeing a house. 再简单一点说，这些动词后面不要随意加-ing.
● 注意：have a party / think about可以用进行时，因为这里have意为“举行”；think意为“考虑”。
测试精编
1. How can you ________ If you are not ________ ?
A. listening / hearing B. hear / listening
C. be listening / heard D. be hearing / listening to
girl even won't have her lunch before she ________ her homework.
A. will finish B. is finishing
C. had finishedD. finishes
3. Those who have applied for thepost________ in the office.（此题超前）
A. are beinginterviewed B. are interviewing
C. interviewing D. to be interviewing
4. The old scientist ________ to do more for the country.
A. is wishing B. has been wishing
C. wishes D. has been wished
5. If he ________, don't wake him up.
A. still sleeps B. is still sleeping
C. still has been sleeping D. will be sleeping still
（后设答案，大家不要偷看哦~(*^__^*) 嘻嘻……）
KEYS
1. B 2. D 3. A 4. C 5. B
