一、一般现在时：欧阳家百（2021.03.07）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, etc.基本结构：①be动词；②行为动词否定形式：①am/is/are+not;②此时态的谓语动词若为行为动词，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：①把be动词放于句首；②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。
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。
一、人称代词he, she, it是第三人称单数。
如：He likes watching TV. 他喜欢看电视。
She has lunch at twelve. 她十二点吃午餐。
It looks like a cat. 它看起来像只猫。
(口诀：I用am，you用are，is用于她他它，单数名词用is，复数名词都用are) 二、单个人名、地名或称呼作主语；是第三人称单数。
如：①Han Mei looks like her mother. 韩梅看起来像她的母亲。
②Beijing is in China. 北京在中国。
③Uncle Wang often makes cakes. 王叔叔经常做蛋糕。
三、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。
如：①A horse is a useful animal. 马是有用的动物。
②This book is yours. 这本书是你的。
四、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。
五、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。
六、当数字或字母作主语时，看作第三人称单数。
如：①"6" is a lucky number. "6"是个吉利数字。
【练习】一、单选1 Jenny ____ in an office. Her parents ____in a hospital.A work worksB works workC work are workingD is working work2 One of the boys_____ a black hat.A haveB there isC there areD has3 We will go shopping if it____ tomorrow.A don't rainB didn't rainC doesn't rainD isn't rain4 He said the sun ____in the east and ____in the west.A rose; setB rises; setsC rises, setD rise; sets5 Wang Mei ____ music and often ____ to music.A like; listenB likes; listensC like; are listeningD liking ;listen6 Jenny____ English every evening.A has studyB studiesC studyD studied二、填空1 I can take Li Ming there when he _____ ( come) to visit.2 _____your sister_____(know)English? 3Her home____ _____ ______(远离)her school. 4The pot_____(not look) like yours very much.5 Where _____you____(have)lunch every day?6 Who_____(想要)to go swimming?7 ______she_____(do) the housework every day?8 Jenny and Danny usually______(play) games in the afternoon .二、一般过去时：概念：过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为。
时间状语：ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.一般过去时的结构（可分三类不同的结构）1.Be动词的一般过去时在没有实义动词的句子中使用be动词，am is 的过去式为was; are的过去式为were肯定句式：主语 + be(was , were) + 其它.否定句式：主语 + be(was , were) + not + 其它.一般疑问句：Be(was , were) + 主语 + 其它？注：在这种构成中，be动词有人称和数的变化，即要根据主语选用was / were。
Be动词分为单数和复数，was是表示单数，were 是表示复数。
2.实义动词的一般过去时态肯定句要使用动词的过去式，否定句和疑问句要使用助动词do和 does 的过去式 did.肯定句式：主语 + 动词（过去式）+ 其它否定句式：主语+ didn’t + 动词（原形）+ 其它【did not = didn’t】一般疑问句：Did + 主语+ 动词（原形）+ 其它【do , does的过去时均为did】？注：1. did和didn’t是构成一般过去时的助动词，其特点是要在其后跟动词的原形。
2. 实意动词do的一般过去时I do my homework every day.(用yesterday改写句子)I did my homework yesterday.I didn’t do my homework yesterday.(否定句)Did you do your homework yesterday？Yes ,I did. /No, I didn’t.(一般疑问句)3. 情态动词的一般过去时态含有情态动词的一般过去时与含有Be动词的一般过去时，是十分相似，请注意观察。
肯定句式：主语 + 情态动词 + 其它否定句式：主语 + 情态动词 + not + 其它.一般疑问句：情态动词 + 主语 + 其它？注：情态动词的过去式：can→could , may→might , must→must ，will-would，should-should。
4.特殊疑问句式：特殊疑问词+be过去式+主语+其他？特殊疑问词+情态助动词过去式+主语+动词原形+其他？特殊疑问词+do/does过去式+主语+动词原形+其他？What was your former name？你以前叫什么名字？Why was he late for school last Monday？上星期一他为什么迟到？What could she do twenty years ago？ 20年前她能做什么？规则动词的过去式1.一般情况下，在动词原形后面加-ed。
look→looked play→played start→started visit→visited pull-pulled, cook-cooked2.以不发音e结尾的动词，在词尾直接加-d。
live→lived use→used taste-tasted3.以“辅音字母+ y”结尾的动词，先将y 改为i ,再加–ed。
study→studied try→tried fly→flied4.以重读闭音节（即辅音＋元音＋辅音）或r音节结尾，末尾只有一个辅音字母的动词，要先双写这个辅音字母后，再加–ed。
stop→stopped plan→planned stop-stopped prefer→preferred5.不规则动词的过去式需特殊记忆。
如：am(is)-was, are-were （是）, become _became (成为) go-went（走）基本用法①表示过去某个特定时间发生的动作或存在的状态。
He suddenly fell ill last night. 他昨晚突然病倒了。
②表示过去的习惯性或经常发生的动作She went to the cinema once a month when she was at alked by the riverside. 我在乡下时经常在河边散步。
③叙述过去连续发生的一件件事She got up early, fetched water, cleaned the room and then went out for a walk. 她早早起床，提水，打扫房间然后出去散步。
【练习】一、请用正确动词形式填空1. He (live) in Wuxi two years ago.2. The cat (eat) a bird last night.3. We (have) a party last Halloween.4. Nancy (pick) up oranges on the farm last week.5. I (make) a model ship with Mike yesterday.6. They (play) chess in the classroom last PE lesson.7. My mother (cook) a nice food last Spring Festival.8. The girls (dance) at the party last night.9. I (watch) a cartoon on Saturday last week.10. ______ you _______ (visit) your relatives last Spring Festival?11. ______ he _______ (fly) a kite on Sunday? Yes, he ______.12. Gao Shan _______ (put) up the picture last night.13. I ____________ (sweep) the floor yesterday.14. What ______ she _______ (find) in the garden last morning?15. Her father _______ (read) a newspaper last night.16. Mike _________________(not go) to bed unt il 12 o’clock last night.17. I listened but ___________ (hear) nothing.18. How many people ________ (be) there in your class last term?二、按要求变换句型。