二．现在进行时：is / am / are + 现在分词
1．表示现在正在进行的动作。如
. The kettle is boiling. Shall I make tea?
. Don't you think you eat too much? You're putting on weight(体重增加)。
. 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 this semester(本学期)。
. Weare 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 is seriously ill, 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*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) criticizing her 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.
● 可怕的是：我们在写作及口语中常犯此类大错!
● 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
2.The girl even won't have her lunch before she ________ her homework.
A. will finish B. is finishing
C. had finished D. finishes
3. Those who have applied for the post(职位)________ in the office.(此题超前)
A. are being interviewed 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
1.B 2.D 3.A 4.C 5.B