一般现在时三单

一般现在时三单一般现在时三单一般现在时三单xxx公司一般现在时三单文件编号：文件日期：修订次数：第1.0次更改批准审核制定方案设计，管理制度一般现在时 概念：经常、反复发生的动作或行为及现在的某种状况。时间状语：always,usually,often,sometimes,every week(day,year,month„),once a week,  on Sundays, 基本结构：动词原形/第三人称单数形式（如主语为第三人称单数，动词上要改为第三人称单数形式） 否定形式：am/is/are+not;  谓语动词若为动词，则在其前加don't,如主语为第三人称单数，则用doesn't，同时还原行为动词。一般疑问句：把be动词放于句首；用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。三单动词的变化规则 一般情况下，直接加-s 如：play—plays， want—wants， work—works， know—knows， help—helps，get—gets 以s. x. sh. ch. o结尾，加-es  如：guess—guesses， fix—fixes， teach—teaches， brush—brushes， go—goes，do—does，watch—watches，catch—catches以“辅音字母+y”结尾，变y为i, 再加-es 如：study—studies，carry—carries，fly—flies，worry—worries规则：在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。   人称代词中he, she, it是第三人称单数。   例如：   ①He likes swimming very much.   他非常喜欢游泳。   ②She eats healthy food every day.   她每天吃健康的食物  ③It looks like a cat.   它看起来像只猫。    单个人名、地名或称呼作主语;是第三人称单数  如： ①Jane wants to go travelling on the summer vacation. 暑假Jane想去旅游。   ②Beijing is in China.   北京在中国。   单数可数名词或"this/that/the+单数可数名词"作主语时，是第三人称单数  例如： ①A horse is a useful animal.   马是有用的动物。   ②This book is yours. 这本书是你的。  ③That car is red.   那辆小汽车是红色的。  不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，是第三人称单数。如：   ①Everyone is here.   大家到齐了。   ②There is something wrong with the watch.   这块手表有毛病。  ③This is a pen.   这是一支钢笔。   ④That is an eraser.   那是一块橡皮擦。   不可数名词作主语时为第三人称单数。如：   ①The milk is in the glass.   牛奶在玻璃杯里。   ②The bread is very small.   那面包很小。   6. 当数字或字母作主语时，看作第三人称单数。如：   "I" is a letter.   "I"是个字母。drink ________ go _______ stay ________ make ________  look _________ have_______ pass_______ carry ____  come________   watch______ plant_______ fly ________  study_______ brush________ do_________ teach_______  catch _________ wash_________  like________have______ say_________ learn ________ eat________ read_________ sing_______  用括号内动词的适当形式填空。   He often ________(have) dinner at home.    Daniel and Tommy _______(be) in Class One.    We _______(not watch) TV on Monday.    Nick _______(not go) to the zoo on Sunday.    ______ they ________(like) the World Cup   _______ your parents _______(read) newspapers every day   The girl _______(teach) us English on Sundays.  She and I ________(take) a walk together every evening.   There ________(be) some water in the bottle. Mike _______(like) cooking.  They _______(have) the same hobby.   You always _______(do) your homework well.   She _______(go) to school from Monday to Friday.  The child often _______(watch) TV in the evening.  We often___