广州东湖公园一般现在时态现在时态

2020年12月22日发(作者：倪文蔚)
一般现在时态
一、定义与讲解
一般现在时：表示经常性的事情，经常性的动作或一般性事实。时间状语：often 经常，usually
通常，always 总是，every每个，sometimes 有时，at …在几点钟
只有在第三人称单数用动词的“三单变化”，其他用动词的原形。
三单变化：1.多数在动词后+s play — plays like — likes
(1)直接在动词词尾加-s.
ask---asks work---works get ---gets stay---stays
(2)以字母s, x, ch, sh或o结尾的动词，在词尾直接加-es.
watch---watches wish--- wishes fix---fixes
do---does go---goes pass--- passes
(3)以“辅音字母加 - y”结尾的动词，要先变y为i再加-es.
try---tries study---studies cry---cries fly--- flies
2.不规则变化：be---- is are have----has
主语是第三人称的情况有
1、人称代词是和，she,it 的时候谓语动词用单三形式
He likes watching TV。
2、单个人名，地名或者称呼做主语的时候谓语动词用单三形式
Lucy likes apples. Beijing is in China . Uncle Wang often drinks milk .
3、单数可数名词或者thisthat +单数名词作主语时谓语动词用单三形式
This book is yours .
4、不定代词someone ,somebody nobody,everything,some thing等以及指示代词this
和that做主语的时候谓语动词用单三形式
Everyone is here。This is a pen .
5、不可数名词做主语的时候谓语动词用单三形式
The milk is in the glass。The bread is very small。
6、当数字和字幕做主语的时候谓语动词用单三形式
“6”is a lucky number . “I”is a letter.
二、一般现在时用法
1. 表示经常性，习惯性,永久性的动作或存在的状态.通常与副词sometimes, often,
usually, always, every day (year, month ), once (twice, three times) a day,等时间状语
连用。
They usually go to school by bike.
I take the medicine three times a day.
She helps her mother once a week.
Mary’s father is a policeman.
There are 50 students in my class.
2. 表示客观真理，科学原理，自然现象，等客观事实或格言，谚语等。
The sun rises in the east and sets in the west every day.
The man who has never been to the Great Wall is not a real man.
Tomorrow is Tuesday.
三、一般现在时的句子转换：
(1)当句子中有be动词或情态动词时，则把be动词或情态 动词(can,could等等)
提到主语的前面变成疑问句;在be动词或情态动词后面加not变成 否定句.
例：①陈述句：She is a student.
疑问句→ Is she a student?
否定句→ She is not a student.
②陈述句：I can swim. 疑问句→ Can you swim 否定句→ I can not swim.
(2) 当句子中即没有be动词，也没有情态动词时，则在主语前加助动词do (you,
以及复数), d oes(单数she,he,it)变成问句;在主语后谓语动词前加助动词
don’t(I,you, 以及复数), doesn’t(单数she,he,it)变成否定句，助动词后的动词要变成
动词原形。
例：①陈述句：We get up at 7:00 every morning.
疑问句→Do you get up at 7:00 every morning?
否定句→We don’t get up at 7:00 every morning.
②陈述句：She has a little brother.
疑问句→ Does she have a little brother?
否定句→ She doesn’t have a little brother
often______(play) in the playgound.
_____(get) up at six o’clock.
3._____you ______(brush) your teeth every morning.
(do) ______he usually (do)______ after school?
_____(study) English,Chinese,Maths,Science and Art an school.
sometimes ________(go) to the park with his sister.
eight at night,she __________(watch) TV with his parents.
8.________ Mike________(read) English every day?
many lessons_________your classmate________(have) on Monday?
time_________his mother_________(do) the housework?
改句子
you often play football after school?(肯定回答)
2.I have many books.（改为否定句）
Shan’s sister likes playing table tennis （改为否定句）
lives in a small town near New York.（改为一般疑问句）
5.I watch TV every day.（改为一般疑问句）
has got a goal.（改为一般疑问句）
have four lessons.（否定句）
doesn’t run fast （肯定句）
dog runs fast.
否定句：
一般疑问句：
has two letters for him.
一般疑问句：
否定句：
11.I usually play football on Friday afternoon.
否定句:
一般疑问句:
划线提问
Yang usually washes some clothes on Saturday.
否定句:
一般疑问句:
划线提问:
ng usually waters the flowers every day
否定句:
般疑问句:
划线提问
does his homework at home.
否定句:
一般疑问句:
划线提问