小学英语外研版（三起）三年级下册一般现在时的用法一、定义一般现在时：表示经常性的事情。
它常与时间状语：often经常, usually通常, always总是，every每个,sometimes有时，at…在几点钟等连用只有当主语是第三人称单数时动词也要用第三人称单数，其余动词均用原形动词第三人称单数变化：1多数在动词后加s play—plays like—likes2 以s，x，sh，ch，o结尾的动词加es go—goes wash--washes3以辅音字母加y结尾，把y改i再加es fly—flies二、如何把一般现在时态的陈述句变为一般疑问句？首先按照动词种类的不同将句子分为两类：第一类：含系动词be（am / is / are）或情态动词（can / could等）的一般现在时的句子。
［方法］一调二改三问号一调：即把句中的be（am / is / are）或can等词调到主语前；二改：句中的主语若含有I（my / we）等第一人称代词时，需将它们分别改为yo u（your / you）；三问号：句末的句号改为问号。
如：①I am from China. →Are you from China？②He can mend this bike. →Can he mend this bike？［注意］变为一般疑问句后，朗读时要用升调。
第二类：含行为动词（即实义动词）的一般现在时的句子。
［方法］一加二改三问号。
一加：即在句首加助动词Do（第三人称单数(He/She/It）作主语时加Does）；二改：句首加助动词Does之后，谓语动词必须改为原形，句中的主语为第一人称代词时变化同第一家族；三问号：句末的句号改为问号。
如：①Li Mei likes swimming. →Does Li Mei like swimming？②He gets up early every morning. →Does he get up early every morning？③We clean our classroom every day. →Do you clean your classroom every da y？三、如何变否定句第一类：含系动词be（am / is / are）或情态动词（can / could等）的一般现在时的句子。
直接在be（am / is / are）或情态动词（can / could等）后加上not.如：He is not a student.Tom can not swim.第二类：含行为动词（即实义动词）的一般现在时的句子。
方法：如果主语是第三人称单数（He/She/It）在行为动词（即实义动词）前加上助动词does not=doesn't,助动词does not=doesn't后必须用动词原形。
如：He gets up early every morning.→He doesn't get up early every morning.如果主语是第一人称(I/We)、第二人称(You)、第三人称复数（They）在行为动词（即实义动词）前加上助动词do not=don't .助动词do not=don't.后必须用动词原形。
如：We clean our classroom every day. →We don't clean our classroom every day.答案：一、用括号内动词的适当形式填空1has 2 are 3 don’t watch 4 don’t go 5 Do like 6 Do do 7 Do read 8 teaches 9 take10 is11 is 12 likes 13 looks 14 do 15 am 16 goes 17 doesn’t 18 watches 19 have 20 i s二、按照要求改写句子1 1. Daniel doesn’t watchTV every evening.2. Do you do your homework every day?No, I don’t.3. Does she like milk?Yes, she does.4. Does Amy like playing computer games? No, she doesn’t.5. We don’t go to school every morning.6. He doesn’t speak English very well.7. Where do you like taking photos?8. Where does John come from ?9. Is she always a good student?10. Simon and Daniel don’t like going skating.一、用括号内动词的适当形式填空。
（本项积分10分，每题0.5分）1. He often ________(have) dinner at home.2. Daniel and Tommy _______(be) in Class One.3. We _______(not watch) TV on Monday.4. Nick _______(not go) to the zoo on Sunday.5. ______ they ________(like) the World Cup?6. What _______they often _______(do) on Saturdays?7. _______ your parents _______(read) newspapers every day?8. The girl _______(teach) us English on Sundays.9. She and I ________(take) a walk together every evening.10. There ________(be) some water in the bottle.11. Mike _______(like) cooking.12. They _______(have) the same hobby.13. My aunt _______(look) after her baby carefully.14. You always _______(do) your homework well.15. I _______(be) ill. I’m staying in bed.16. She _______(go) to school from Monday to Friday.17. Liu Tao _______(do) not like PE.18. The child often _______(watch) TV in the evening.19. Su Hai and Su Yang _______(have) eight lessons this term.20. －What day _______(be) it today? －It’s Saturday.二、按照要求改写句子（本项积分10分，每题1分）1. Daniel watches TV every evening.(改为否定句)___________________________________________________2. I do my homework every day.(改为一般疑问句，作否定回答)________________________________________________________3. She likes milk.(改为一般疑问句，作肯定回答) ___________________________4. Amy likes playing computer games.(改为一般疑问句，作否定回答)___________________________________________________5. We go to school every morning.(改为否定句)_______________________________________________________6. He speaks English very well.(改为否定句)___________________________________________________7. I like taking photos in the park.(对划线部分提问)________________________________________________________8. John comes from Canada.(对划线部分提问)___________________________________________________9. She is always a good student.(改为一般疑问句，作否定回答)________________________________________________________10. Simon and Daniel like going skating.(改为否定句)___________________________________________________三、改错(划出错误的地方，将正确的写在横线上) （本项积分5分，每题一分）1. Is your brother speak English? __________________2. Does he likes going fishing? __________________3. He likes play games after class. __________________4. Mr. Wu teachs us English. __________________5. She don’t do her homework on Sundays. _________________做完，要检查啊！。