注意！
表示感觉、情感、心理状态的动词如: smell , taste, sound ,look , feel ,love，like，hate ，hope，wish，want，prefer，know，understand ，remember，agree，believe，recognize，guess ，suppose（假设；认为），mean，hear，see， seem，find，mind，have(有)等通常不用进行时。
around the sun .
2.标志词：always ，often，usually，sometimes ，every day/week/month/year, once a week
3.结构：动词原形或动词第三人称单数
4.一般现在时表示将来，用于谈论时间表、日程表、 节目单等安排好的活动。句中常有时间状语，但仅用
动词时态 讲与练
一般现在时
1 含义：表示经常性、习惯性的动作，表示现 阶段的情况、动作，状态，客观存在或真理。
Our school has a big playground. I get up at 7:00 every day. His father works in a bank. She likes comedy very much. Scientists told us the earth moves
(have) an English class now.
2. Is
door?
the baby
sleeping
(sleep) next
is being polluted
3. At present the environment
三.(现po在ll进ut行e)时s表er示io一us般ly将.来时：表示即将发生的动作或按计划即
于少数几个表示“移动”的动词：come , go , arrive , begin , leave , return , start , 等。
1.The plane leaves (leave) for Paris at eight this evening .
2.The meeting
begins
将发生的动作。 常见的词有：come，leave，reach，return，go
，start，arrive, stay等。
He is leaving for Spain.他就要动身去西班牙了。
1.I am leaving
(leave) for Bejing
tomorriosw s.taying
2.Sally
(begin) at half past two tomorrow
afternoon .
5. 在时间、条件状语从句中，用一般现 在时表示将要发生的动作。
1.When he
(be)18 years old ,
he will join the army .
2. Take an umbrella in case it _____ (rain) tomorrow .
—Good morning，I wonder if you can help.I ________ my coat.
—Oh，where did you lose it，madam?
A．have lost
B．lost
C．had lost
D．lose
2.现在完成时所表示的动作开始于过去，持续 到现在，也许还会持续下去。常和for和since 这种表示一段时间的状语，或so far、up to now ，recently/lately、段时间+before， never，already，yet，during/over /in the last/past +时间等状语连用。
(stay) in her aunt’s
三、当always，constantly与进行时态连用时，表示不 耐烦、抱怨，赞美等感情色彩。
1.She is
always
such silly questions .
2. They are
(help) others.
asking (ask) always helping
3.I won’t go to his party unless she
____
(send ) an
invitation.
现在进行时
一含义：表示现在或现阶段正在进行的动作，常与now ,
at present,at this time 等连用。
二构成：am/is/are + 动词-ing
1.We are having
不能说： 1.We are wanting to take part in the lecture . 2. The food is tasting nice . 3.Kate is knowing the answers.
现在完成时
构成：has/have + v-ed
含义：
1.现在完成时所表示的动作在说话之前已完成 ，强调对现在造成的影响和结果；
的动作。 I'll wait until he has written his letter.
If I have finished my homework， I'll go with you.
注意1
短暂性动词（如：come ,go ,return , die , join , marry , buy , leave, get, begin , catch , end , finish 等 ）可 语连用。如：
不能说：She has come here for two hours .
只能说 ：She has been here for two hours .
1.China has changed a great deal in the
past 20 years.
2. It has rained every day so far this month.
3. It‘s the first time I have been in this town.
3.在时间 / 条件状语从句中，可以 用现在完成时表示将来某时已经完成