一般现在时的构成一般现在时的用法知识点详解
1.一般现在时的构成
主要由动词原形构成。动词be的第一人称单数形式用am,第三人称单数形式用is,其他人称形式均用are。动词have的第三人称单数形式用has。实义动词的第三人称单数形式的变化规则是:
一般情况直接加s hate→hates
结尾为s,x,sh,ch或o,在词尾加es discuss→discusses
fix→fixes
wash→washes
teach→teaches
go→goes
结尾为“辅音字母+y”
变y为i再加es carry→carries
study→studies
高中英语单词表3500词必背
单词快速记忆法
人教版初中英语单词
2.一般现在时的用法
(1)表示经常发生的、习惯性的、反复出现的动作或状态。常与表示习惯的副词(词组)always,every time,now and then,occasionally,often,seldom,never,sometimes,usually,every day/night等连用。
He often goes to work by bus,and he takes a walk with his wife after dinner every day.
他经常乘公共汽车去上班,而且每天晚餐后和妻子一块儿散步。
(2)按时间表、时刻表、日程表等安排将要发生的动作。只限于go,arrive,leave,start,stay,return,begin,come等动词。
Look at the timetable.Hurry up! Flight 4026 takes off at 18:20.
看看时间表。快点儿吧!4026航班18:20起飞。
(3)在状语从句中,当主句是一般将来时态时,从句用一般现在时表示将来。
If it is fine tomorrow,we will go there.
要是明天晴天,我们就去那里。
题一:
________will be our monitor hasn’t been decided yet.
________you need is more practice.
________I am telling you is mere impressions.
________car you will choose to buy makes no difference.
________we need more equipment is quite obvious.
________we will go for an outing remains unkown.
A. That
B. What C. Which D./
E. If
F. Whether
G. Who
题二:
________is going to do the job will be decided by the Party committee.
________I am afraid of is their taking him to Portugal.
________Tom learned in university helps him a lot in his job.
________of those languages he will study is of great importance.
________you are coming to London is the best news I have heard this long time.
________they would support us was a problem.
A. That
B. What C. Which D./
E. If
F. Whether
G. Who
答案
题一:
GBBCA F
解析:________will be our monitor是主语从句。从句缺少主语,可排除A, D, E 和F。根据句意可知,应选who(谁)。
解析:________ you need是主语从句。从句缺少宾语,可排除A, D, E 和F。根据句意可知,应选what(所……的事物)。
解析:________I am telling you是主语从句。从句缺少宾语,可排除A, D, E 和F。根据句意可知,应选what(所……的事物)。
解析:________ car you will choose to buy 是主语从句。从句缺少定语,可排除A, D, E , F。根据句意可知,应选which(哪个)。
解析:________we need more equipment是主语从句。从句不缺成分而且句意完整,所以选that。注意:that引导主语从句时,that不能省略。
解析:________ we will go for an outing是主语从句。从句不缺成分,可排除B、C、D和 G。 if和whether都有“是否”的意思,但if不能引导放在句首的主语从句,而whether则可以。
题二:
GBBCA F
解析:________is going to do the job是主语从句。从句缺少主语,可排除A, D, E 和F。根据句意可知,应选who(谁)。
解析:________I am afraid of是主语从句。从句缺少宾语,可排除A, D, E 和F。根据句意可知,应选what(所……的事物)。
解析:________Tom learned in university是主语从句。从句缺少宾语,可排除A, D, E 和F。根据句意可知,应选what(所……的事物)。
解析:________ of those languages he will study 是主语从句。从句缺少主语,可排除A, D, E , F和 G。根据句意可知,应选which(哪个)。
解析:________ you are coming to London是主语从句。从句不缺成分而且句意完整,所以选that。注意:that引导主语从句时,that不能省略。
解析:________they would support us是主语从句。从句不缺成分,可排除B、C、D和 G。 if和whether都有“是否”的意思,但if不能引导放在句首的主语从句,而whether则可以。
