b. He is very happy.
c.The earth moves around the sun.
2) 在时间状语从句和条件状语从句中，用一般现在时表示将来。例如：
a. If you come this afternoon, we’ll have a meeting. b. When I graduate, I’ll go to countryside. 2.一般过去时的用法
（1） 表示过去某时间发生的事、存在的状态或过反复发生的动作。常和:
last week(night,Monday,month,year,...etc.) four years ago(days,month,...etc.) before1980(three,liberation,从句,...etc.) the day before yesterday,the day before last, the year before last,just now,a monent ago, at first,at last,in the end,finally,then,.. a. He saw Mr. Wang yesterday. b. He worked in a factory in 1986.
2)表示过去经常发生的动作 ， 也可用 “used to “ 和“would + 动词原形”。 I used to smoke. During the vacation I wouldm in the sea.
注：”used to “ 表示过去常发生而现在不再发生的动作或存在的状态。
a. I am used to the climate here. b. He is used tomming in winter. 3.一般将来时的用法
一般将来时表示将来的动作或状态。其表达形式除了 “ will 或 shall + 动词原形 ”表示即将发生的或最近打算进行的事。常和：next week(Monday,month,year,...etc.) in three days(an hour,...etc.)
tomorrow,tomorrow morning,the day after tomorrow,the day after next,the year after next,tonight,in 2010(2016...etc.) 1）be going to do 结构 It is going to rain.
We are going to have a meeting today.
2) “be about to + 动词原形” 表示即将发生的动作，意为 be ready to do sth. 后面一般不跟时间状语。 We are about to leave.
3) go , come , start, move, leave, arrive ,stay 等可用进行时态表示按计划即将发生的动作。I’m leaving for Beijing. 4.现在进行时的用法
1） 现在进行时表示现在正在进行的动作，由“ be + 现在分词” 构成。常和：now,these
days(weeks,months,...etc.) Look!,Listen!,...
另外， “系动词 + 介词或副词” 也表示进行时的意义。What are you doing? The bridge is under construction. 2） 表示感觉、愿望和状态的某些动词（如have, be , here, se, like 等 ） 一般不用进行。 5.过去进行时的用法
1） 过去进行时过去某一时刻、某一阶段正进行的动作，由 “ was (were) + 现在分词”构成。
常和：this time yesterday,this time last Friday,in those days,at nine last night,from one to three yesterday afternoon,... 1
In 1980 he was studying in a university. He was reading a novel when I came in.
6.现在完成时的用法现在完成时由 “have/has + 过去分词.其使用有两种情况： 1） 现在完成时所表示的动作在说话之前已完成，但对现在有影响。句中没有具体时间状语。 常和：
just,alreadly,yet,never,ever,now,before,this week,today,these days,once,twice,three times,... He has gone to Fuzhou. He has been to Fuzhou. 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用 for 和since表示一段时间的状语或
since then(1949,last Monday,two o'clock,从句...,etc.)，ever since then,
for three days(a long time,two hours,...etc.)so far , now, today, this wek (month, year ) 等表示包括现在内的状语。 He has studied English for 5 years. He has studied English since 1985. Now I have finished the work..
注意：表示短暂时间动作的词（如come, go , die, marry, buy 等）的完成时不能与for, since 等 表示一般时间的词连用。 正确：I have bought the book already. 错误：I have bought the book for two years.
改： I have had the bookl for two years. 7．过去完成时的用法
1） 过去完成时由“had + 过去分词”构成。过去完成时的动作表示过去某一时刻或某一时刻或某一动作之前完成的动作或状态。句中常用by then(1977,yesterday,eight last night,the time we got there,...etc.)
by the end of last term(week,year,month,...etc.).by, before, until, when 等词引导的时间状语。
By the end of last year we had built five new houses. I had learnt 5000 words before I entered the university.
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