教科版四年级下册英语知识点归纳
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教科版四年级下册英语复习知识点汇总
单元一:家乡和家庭
- 研究如何介绍自己的家乡和家庭
- 掌握有关家庭成员和家乡的基本词汇
- 学会用简单的句子描述家庭成员和家乡的特点
单元二:食物和饮料
- 研究各种常见食物和饮料的英文词汇
- 学会描述不同食物和饮料的味道和喜好
- 掌握询问和回答有关食物和饮料的问题
单元三:生活惯和日常活动
- 研究谈论日常生活惯和常见活动的词汇
- 学会描述自己的日常活动和规律
- 掌握询问和回答关于日常活动的问题
单元四:学校生活
- 研究学校生活的英文词汇,如教室、课程和校园设施等
- 学会描述自己在学校的经历和日常活动
- 掌握询问和回答有关学校生活的问题
单元五:节日和庆祝活动
- 研究常见节日和庆祝活动的英文表达方式
- 掌握询问和回答有关节日和庆祝活动的问题- 学会用英文描述自己参与和组织的庆祝活动
单元六:动植物和自然环境
- 研究常见动植物的英文名称和特征
- 掌握描述动植物和自然环境的基本词汇和句子- 学会用英文描述自己对自然环境的保护和关心
单元七:人物和事物的比较
- 研究用英文比较人物和事物的方式
- 掌握用形容词和副词进行比较的句型
- 学会用英文进行人物和事物的比较和对比
单元八:旅行和交通工具
- 研究旅行和交通工具的英文词汇和表达方式- 掌握描述自己的旅行经历和交通方式的句子
- 学会用英文询问和回答有关旅行和交通的问题
以上是教科版四年级下册英语的复知识点汇总,希望能够帮助你更好地复和记忆这些内容。
四年级英语下册重点知识点总结
四年级英语下册的重点知识点总结如下:
1. 时态动词:学习使用一般现在时、一般过去时和一般将来时来描述不同时间发生的动作。
掌握动词的基本形式和过去式,以及一般将来时的构成。
2. 句型转换:学会进行肯定句、否定句和问句的转换,掌握一般疑问句和特殊疑问句的构成。
3. 数字和计量词:学习数字的书写和发音,掌握基本的计量词,如:a few、a little、a lot of等。
4. 学校用语:掌握与学校相关的英语表达,如:教室、图书馆、操场等地方的名称,以及上课、做作业、考试等动作的描述。
5. 应急日常用语:学习一些日常英语用语,如:问候、道歉、请求帮助等,以便能够进行基本的交流和应对常见的情境。
6. 日常生活描述:学习如何用英语描述日常生活,如:描述自己的家庭、家人、爱好等。
掌握描述人物外貌、个性和能力的词汇。
7. 交通方式:学习描述不同交通工具的名称,如:车、飞机、船等,以及如何描述交通方式、交通工具的行驶方向和速度。
8. 天气和季节:学习描述天气状况和不同季节的英语表达,如:
晴天、阴天、下雨、夏天、秋天等。
9. 礼貌用语:学习基本的礼貌用语,如:谢谢、对不起、请等,以便能够与他人进行礼貌的交流。
以上是四年级英语下册的重点知识点总结,希望对你有帮助!。
四年级下册英语1到3单元知识点Unit 1: My School。
In Unit 1, we will learn about "My School." We will explore different areas of the school and learn about the people who work there. Let's dive into the knowledge points covered in this unit.1. Vocabulary:Classroom: A room where students learn and study.Library: A place where you can borrow books.Playground: An outdoor area where children can play.Office: A room where the school staff work.Gym: A place for physical education and sports activities.Cafeteria: A place where students have their meals.2. Sentences:I have English class in the classroom.I enjoy reading books in the library.We play games on the playground during recess.The teachers work in the school office.We have PE lessons in the gym.We have lunch in the cafeteria.3. Grammar:Singular and Plural Nouns: We add -s or -es to make a noun plural.Example: book books, desk desks。
2024年小学四年级英语下册知识点资料
以下是2024年小学四年级英语下册的知识点资料:
1. 单词拼写:复习上册的单词拼写,包括动物、食物、家庭成员等常见单词。
2. 数字和计数:学习1000以内的数字和计数,包括基数词和序数词的应用。
3. 问路和指路:学习问路和指路的表达方式,包括如何描述方向和位置。
4. 基本句型:学习基本的英语句型,如主语+谓语动词等,以及一般疑问句和否定句
的构造。
5. 时间和日常活动:学习如何表达时间和日常活动,包括用英语描述一天的活动流程。
6. 介词和地点词:学习如何使用介词和地点词,以描述位置关系和方位。
7. 身体部位和感觉:学习英语中常用的身体部位和感觉的表达方式。
8. 季节和天气:学习四季和常见天气的英语表达方式。
9. 形容词和比较级:学习形容词和比较级的用法和构造方式。
10. 食物和饮料:学习常见食物和饮料的英语名称。
这些是2024年小学四年级英语下册的一些基本知识点,希望对您有所帮助!。
英语下册知识点四年级英语作为一门语言学科,在小学四年级下册的学习中,学生需要掌握更多的词汇、语法结构以及基本的交际用语。
以下是四年级下册英语的一些重要知识点:词汇学习- 学习与日常生活相关的词汇,如家庭成员、日常活动、学校用品等。
- 掌握一些基本的动词,如play, eat, go, have等。
- 学习一些形容词和副词,如big, small, fast, slow等,以及它们的比较级和最高级形式。
语法结构- 学习使用一般现在时态来描述日常活动和习惯。
- 掌握名词复数形式的规则和不规则变化。
- 学习使用疑问句,如Is this your book? Can you swim?- 学习使用现在进行时态描述正在进行的动作。
基本交际用语- 学习自我介绍和询问个人信息,如My name is ..., How old are you?- 学习日常问候语,如Good morning, How are you?- 学习表达感谢和道歉,如Thank you, I'm sorry.- 学习简单的请求和提供帮助,如Can I help you? Sure, here you are.阅读理解- 通过阅读简单的英语故事或文章,理解基本的故事情节和主题。
- 学习识别和理解文章中的关键词和短语。
- 通过阅读练习,提高理解问题和回答问题的能力。
写作技能- 学习写简单的句子,如I like ..., She can ...- 练习写日记或小故事,描述一天的活动或想象中的事件。
- 学习基本的写作结构,如开头、中间和结尾。
听力理解- 通过听英语歌曲、故事或对话,提高听力理解能力。
- 学习在听力材料中识别关键词和理解大意。
- 练习听指令并做出相应的反应。
文化知识- 了解一些英语国家的节日和习俗,如圣诞节、复活节等。
- 学习一些简单的英语国家的历史和地理知识。
复习与练习- 定期复习所学内容,确保知识点的牢固掌握。
- 通过做练习题和模拟测试,检验学习效果。
四年级下册英语知识清单
以下是四年级下册英语知识清单的一些常见的内容:
1. 日常用语和问候语
2. 时间和日期的表达方式
3. 数字和基本的算术运算
4. 形容词和副词的用法
5. 介词的用法和常见短语
6. 名词的单数和复数形式
7. 人称代词和物主代词
8. 动词的现在时态和过去时态
9. 一般现在时的陈述句、疑问句和否定句
10. 一般过去时的陈述句、疑问句和否定句
11. 物品的颜色、大小和形状的描述
12. 季节和天气的表达方式
13. 家庭成员和描述家庭关系的词汇
14. 城市和乡村的特征及相关词汇
15. 学科和学校设施的词汇
16. 衣物和穿着的词汇
17. 常见食物和饮料的名称
18. 动物和植物的名称
19. 交通工具和旅行的词汇
20. 常用的动作动词和动作短语
这只是一些常见的知识点,具体的教材内容可能会有所不同。
建议根据具体教材内容进行学习和复习。
广州四年级下册Unit 5单词周;星期今天为什么星期一星期二星期三星期四星期五星期六星期天Unit 5词组在星期四on . 最喜欢的一天.两节体育课two PE . 喜欢唱歌love .玩得开心have . 非常;十分very .Unit 5句型根据中文提示把句子补充完整。
1. day it ? (今天星期几?)2. Wednesday. (星期三)3. It’s day! (这是我最喜欢的一天。
)4. do you like ? (你为什么喜欢星期三?)5. Wednesday we two PE . (我们在星期三有两节体育课)6. favourite day is . (我最喜欢的一天是星期四)7. your favourite ? (你最喜欢星期几?)四年级下册Unit 5 要点:On+星期On Sundaylove+doing love singing love runningLove to do love doingLike to do like doing练一练:What day is it today ?Is it Monday today ?Is it Monday or Tuesday?Why do you like Monday ?What is your favourite day?What lessons do you have today?Do you have an English lesson on Tuesday?What time do you usually have dinner?Unit 5选词填空1.What do you usually do (at,in,on )Monday?2.I love (doing, do, does ) homework after school.3.We have (a,an, the) art lesson and a PE lesson on Tuesday.4. I often have five Chinese (lesson,class, lessons) in a week.5. I like (to play, plays, play ) with my friends.6. I get up at 7:30 _______ (at, in, on) the morning.7. We never go shopping ______ (at, in, on) the evening.8.He often plays football with his friends _______ (at, in, on) Sunday.知识考点【知识考点一】询问今天是星期几的句型:---What day is it today? ---It’s + 星期-- day it today? (今天是星期几?)-- . (星期一)问时间的相关句子: 1. 问时间点:-What’s the time? =?- It’s…2. 问时间段:-When do you…? -- From… to…【知识考点二】I like/ love… 我喜欢……否定句:I don’t like/love…一般疑问句:Do you like/love…?肯定回答:Yes, I do. 否定回答:No, I don’t.like和love后面只能跟名词或者动词的ing形式。
四年级英语下册知识点归纳总结四年级英语下册知识点归纳总结一、简单的日常用语1. 问候语:- Good morning/afternoon/evening.- Hello/Hi.- How are you? I'm fine, thank you.- What's your name? My name is...2. 道别语:- Goodbye/Bye.- See you later/tomorrow.3. 感谢语:- Thank you/Thanks.4. 请求语:- Can I borrow your ruler, please?- May I have some water, please?5. 道歉语:- Excuse me, I'm sorry.6. 祝愿语:- Happy birthday/Merry Christmas.二、日常交际用语1. 问路:- Excuse me, where is the library, please?- Could you tell me how to get to the supermarket?2. 打电话:第1页/共5页- Hello, may I speak to Tom, please?- Sorry, wrong number.3. 自我介绍:- Hi, my name is Jenny. I'm nine years old. Nice to meet you.- Hello, I'm Tom. I'm from Australia.4. 询问喜好:- What's your favorite food/color/animal?- Do you like apples?5. 感叹句:- Wow, it's a beautiful flower!- Look at the cute cat!三、数字和计量单位1. 数字 0-1000:- 0(zero), 1(one), 2(two), 3(three), 4(four), 5(five), 6(six), 7(seven), 8(eight), 9(nine), 10(ten), 11(eleven), 12(twelve),13(thirteen), 14(fourteen), 15(fifteen), 16(sixteen), 17(seventeen), 18(eighteen), 19(nineteen), 20(twenty), 30(thirty), 40(forty),50(fifty), 60(sixty), 70(seventy), 80(eighty), 90(ninety), 100(one hundred), 1000(one thousand).2. 数字的表达方式:- 数字+单位- Ordinal numbers (序数词): 1st(first), 2nd(second),3rd(third), 4th(fourth), 5th(fifth), 6th(sixth), 7th(seventh),8th(eighth), 9th(ninth), 10th(tenth), 11th(eleventh), 12th(twelfth), 13th(thirteenth), 14th(fourteenth), 15th(fifteenth), 16th(sixteenth), 17th(seventeenth), 18th(eighteenth), 19th(nineteenth),20th(twentieth), 21st(twenty-first), 22nd(twenty-second),30th(thirtieth), 40th(fortieth), 50th(fiftieth), 60th(sixtieth),70th(seventieth), 80th(eightieth), 90th(ninetieth), 100th(one hundredth), 1000th(one thousandth).3. 计量单位:- 长度:meter(m), centimeter(cm), kilometer(km)- 重量:gram(g), kilogram(kg), ton(t)- 容量:liter(l), milliliter(ml)- 温度:degree(°C)- 时间:second(s), minute(min), hour(h), day, week, month, year- 货币:dollar($), pound(£), yuan(¥)- 点钟:o'clock四、时间和日期1. 一天的划分:morning, afternoon, evening, night2. 一周的划分:Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday3. 一年的划分:January, February, March, April, May, June, July, August, September, October, November, December4. 询问时间:- What time is it? It's... (o'clock/half past.../quarter to.../quarter past...)- What day is it today? It's... (Monday/Friday/etc.)- What's the date today? It's... (April 1st)5. 日期表达法:月+日- January 1st = 1/1- March 8th = 3/8- November 11th = 11/11五、家庭成员第3页/共5页1. 爸爸:father/dad2. 妈妈:mother/mom3. 儿子:son4. 女儿:daughter5. 爷爷:grandfather/grandpa6. 奶奶:grandmother/grandma7. 兄弟姐妹:brother, sister, older brother, younger brother, older sister, younger sister8. 叔叔:uncle9. 阿姨:aunt10. 堂兄弟姐妹:cousin11. 宠物:dog, cat, rabbit, fish, bird六、学校与课程1. 学校设施:classroom, library, playground, canteen, gym2. 学校的人员:teacher, student, headmaster3. 课程:Chinese, English, math, science, art, music, PE, computer, history, geography4. 学习用具:book, pen, pencil, bag, ruler, eraser, pencil sharpener, notebook七、动物和植物1. 动物:dog, cat, rabbit, bird, fish, monkey, elephant, lion, tiger, panda, giraffe, bear, snake, turtle, whale2. 鸟类:parrot, sparrow, swan, peacock, penguin, owl3. 鱼类:goldfish, shark, dolphin, jellyfish4. 植物:flower, tree, grass, bamboo, sunflower, rose, tulip, orchid八、食物和饮品1. 主食类:rice, bread, noodles, pasta, dumplings2. 蔬菜类:carrot, tomato, potato, onion, cucumber, lettuce3. 水果类:apple, banana, orange, strawberry, grape, watermelon, pineapple, lemon4. 饮品类:milk, juice, tea, coffee, water, soda九、方位和地点1. 方位:in front of, behind, beside, under, on, in, near, between, across from2. 地点:home, school, park, supermarket, hospital, bank, post office, library, zoo, museum, restaurant, cinema, beach十、交通工具1. 飞行器:airplane, helicopter2. 船只:ship, boat3. 汽车:car, bus, taxi4. 自行车:bike, bicycle5. 步行:walk6. 其他:train, subway, motorcycle以上是四年级英语下册中较为常见的知识点的归纳总结,希望能对你的学习有所帮助。
四年级下册英语知识点四年级下册英语教材主要包括以下几个单元:Unit 1: Let's Move! Unit 2: Pets Unit 3: A Fun Day! Unit 4: Our World Unit 5: Food Unit 6: My Family Unit 7: Five Senses Unit 8: Weather Unit 9: On the Farm Unit 10: Our Clothes Unit 11: Homes Unit 12: Jump for Joy!以下是各个单元的相关知识点参考内容:Unit 1: Let's Move!- 动词动作:run, walk, jump, skip, hop, swim, climb- 指示代词:this, that, these, those- 疑问词:what, where, when, who, why, how- 指示物体位置:behind, in front of, next to, between- 介词:in, on, under, behind, in front of, next to, betweenUnit 2: Pets- 动物名称:cat, dog, bird, fish, rabbit, hamster- 形容词描述:small, big, cute, furry, friendly- 询问及回答问题:Do you have any pets? Yes, I have a ______. No, I don't have any pets.- 宠物习性:eat, sleep, play, drinkUnit 3: A Fun Day!- 活动名称:ride a bike, play soccer, fly a kite, have a picnic, make a cake- 句型:I can ______. Let's _______.- 时间表达:morning, afternoon, evening- 情态动词can:表示能力或允许- 数词:first, second, third, fourth, fifthUnit 4: Our World- 地点名称:school, park, hospital, supermarket, library- 地点描述:big, small, busy, quiet, crowded- 询问及回答问题:Where do you go to play? I go to the__________.- 介词:at, to, in, on- 句型:I go to the ________ to _______.Unit 5: Food- 食物名称:apple, banana, rice, noodles, cake, cookies- 不可数名词:water, milk, juice, bread, butter, cheese- 形容词描述:sweet, sour, delicious, yummy, healthy- 询问及回答问题:Do you like ________? Yes, I do. No, I don't. - 句型:I like _________. I don't like _________.Unit 6: My Family- 家庭成员:grandpa, grandma, dad, mom, brother, sister- 人称代词:I, you, he, she, we, they- 外貌特征:tall, short, old, young, long hair, short hair- 家人关系:father - son, mother - daughter, grandfather - granddaughter- 句型:This is my _______. He/She is _______.Unit 7: Five Senses- 五官名称:eyes, ears, nose, mouth, hands- 动词动作:see, hear, smell, taste, touch- 形容词描述:big, small, loud, quiet, sweet, sour- 句型:I can ______ with my _______.Unit 8: Weather- 天气状况:sunny, windy, rainy, cloudy, snowy- 询问及回答问题:What's the weather like today? It's ________. - 季节名称:spring, summer, autumn, winter- 句型:It's _______ in _______.Unit 9: On the Farm- 牲畜名称:cow, sheep, pig, horse, chicken, duck- 动物生活环境:barn, pen, field- 动物行为:eat grass, run, swim, fly, lay eggs- 询问及回答问题:What can a _______ do? A ________ can_______.- 句型:Look at the _______ in the ________.Unit 10: Our Clothes- 衣物名称:hat, shirt, skirt, pants, shoes, socks- 颜色描述:red, blue, yellow, green, black, white- 季节穿着:coat, sweater, boots, sandals, sunglasses, raincoat- 询问及回答问题:What are you wearing today? I'm wearing a ________.- 句型:I like to wear ________.Unit 11: Homes- 房屋类型:house, apartment, villa, cabin, tent- 我的房间描述:big, small, tidy, messy, comfortable, cozy- 家具名称:bed, desk, chair, table, wardrobe, bookshelf- 询问及回答问题:What is in your room? There is a ________. - 句型:My house has ________.Unit 12: Jump for Joy!- 动词动作:jump, dance, sing, clap, hop, skip- 形容词描述:happy, sad, excited, tired- 表示情感:I am ________. It makes me ________.- 句型:I feel _______ when I _______.希望以上内容能够帮到你!。
四年级下册英语笔记一、重点单词1. family 家庭2. friend 朋友3. school 学校4. library 图书馆5. post office 邮局6. hospital 医院7. police station 警察局8. science museum 科学博物馆9. cinema 电影院10. train station 火车站二、重点短语1. meet at the school gate 在校门口集合2. take the train 乘火车3. get to the train station 到达火车站4. on the way to the library 在去图书馆的路上5. post a letter 寄信6. buy some books 买书7. go to the cinema 看电影8. see a film 看电影9. go to the hospital 去医院10. be ill 生病三、重点句型1. Where do you live? 你住在哪里?I live in + 地点。
我住在+地点。
2. How do you get to + 地点?你怎么到达+地点?I get to + 地点 + by + 交通方式。
我通过+交通方式+到达+地点。
3. What do you do at the weekend?你周末做什么?I often + 动词。
我经常+动词。
偶尔会+动词。
有时+动词。
4. What are you going to do this weekend?你这个周末打算做什么?I’m going to + 动词。
我打算+动词。
Module 1 People一、基本目标Unit1*Who’s that (man/ lady)?Which one?Who are those two persons?They’re my parents.The one with a yellow hat.(有*号的是以前学习过的句型,以后同。
)Unit 2What is he/ she like?She is lovely but shy.*He/She has (long hair / big eyes/…).*He/ She is (tall / thin/…).二、重难点分析1、下面是以前学过含有本模块总结的读音规则的词:c: nice, face, mice, science. ck: back, duck, black, sock, clock, jacket, chicken, blackboardas(s): class, glassesau/aw: drawair: hair, chair2、本课的“in”在句子里有“穿着、戴着”的意思,,表示衣着方面的特征;”with”则有“有、带有”的意思,翻译时比较灵活。
例句:The girl in a pink dress in my cousin. 穿着粉红色连衣裙的女孩是我的表姐妹。
The man with glasses is my new English teacher. 戴着眼镜的男人是我的英语老师。
3.Which的用法跟what相似,看下面的例句:Which is your pencil?Which clothes do you like best?4.表示学科的单词我们学过有:Chinese, maths, English, music, art, PE, science。
Show me your books, please.This book is for him.6. 注意art, English, old, eye, ear等词前用an表示一个、只、条、..., 而不用a, 例如:an art teacher, an English teacher, an old man,an eye, an earModule 2 Daily routine一、基本目标Unit 31) What time is it?It’s seven thirty.2) It’s time for breakfast/ to have breakfast/3) It's time to go to sleep4) *Let’s go to school.Unit 41) We get up a t (eight o’clock).2) We have lessons from eight in the morning to four in the afternoon.二、重、难点分析1、下面是以前学过含有本模块总结的读音规则的词:g: good, grape, grow, gardeng: gym, orange, largeea: head, heavyey: they, greyer: mother, teacher, farmer, driver, writer, painter, reporter, sweater, number, mother, father, sister, brother, computer, winner. grandmother, grandfather ear: ear, near ear: bear, pearere: here ere: there, where2、It’s time for 后面跟名词,而It’s time to后面跟动词,如:It’s time for bed/ school/ class/ breakfast/ lunch/ dinner。
It’s time to get up/ go to school/ have breakfast /have lunch /have dinner/ go to bed / ...3、tired不能用作动词,要与be或look(s) 连用,如:I’m very tired. She looks tired.From seven am to eight pm 从早上七点到晚上八点,from one to one hundred 从一到一百6、am(a.m.)表示“上午”, pm(p.m.)表示“下午”。
7、注意时间与介词的连用:at seven (o’clock), at half past fivein the morning, in the afternoon, in the evening, at nightModule 3 Days of the week一、基本目标Unit 51) What day is it today?Is it Monday?It’s Sunday.2) What’s your favourite day?/ Which day do you like best?Unit 61) What do you usually do (after school)?*2) Do you usually/ often/ sometimes (take exercise on Monday)?二、重、难点分析1、下面是以前学过含有本模块总结的读音规则的词:tr: tree, trousers (注意区别于ch和ts的发音)dr: draw, drive, driver, hundred (注意区别于g和j的发音)nk: pink, thank,wr::wrong, write, writeri: hi2、周日的名称可以缩写:Sunday--Sun. Monday--Mon. Tuesday--Tue. Wednesday--Wed.Thursday--Thur. Friday--Fri. Saturday--Sat.3.用favourite可以引出下面的句子:What’s your favourite day/ sport/ colour/ subject/...4、日期与与介词的连用常用on (表示在......日或某天的一部分),如:on Sunday, on Saturday morning, on Wednesday afternoon。
对比:at six o’clock, at half past tenin the morning, in the afternoon, in the evening, at night, at noon5、Like 有两种意思,一是“喜欢”,二是“象”:I like reading. 我喜欢阅读。
I want to be a painter like my father.课本里的句子:I always help me father do housework? 我总是帮助我的妈妈做家务。
Like what? 比如说帮什么?6、英语中表示频度的副词有:always(总是)-usually(通常)-often(经常)-sometimes(有时)-seldom(极少)-never (从不)这些词长放在在行为动词的前面或be动词的后面,如:I always help my parents after school. I am always here on Sunday.有时放在句前或后面,如:I go there very often.Sometimes I go shopping with my parents.7、两个动册间后一个动词通常用不定式to (d0)..., 如:I want to buy a T-shirt. I like to play music. I use this pen to write.但help后一般不加to, 如:I usually help mum do housework.8.He / She likes doing sth. something一般指某种事情He likes to do sth. Something一般指具体的事情9. help sb (to) do sth. 可省toModule 4 Activity一、基本目标Unit 7*1) What do you often do on Sunday/ Saturday// after school; when you have free time)?I often listen to music/ play computer games, have sports/…*2) Do you always watch TV in the evening?Yes, I do. No, I don’t.3)Shall we (watch a cartoon)Unit 81) What are you doing?I’m read ing / playing computer games.2) Are you play ing computer games?Yes, I am./ No, I’m not.二、重、难点分析1、下面是以前学过含有本模块总结的读音规则的词:o: come, does, love, front, Mondayou: house, mouse, mouth, blouse, trousers, playgroundou: young, touchoo: too, pool, schooloo: cook, book, look, goodoy: boy, toyold: oldoor: door, floor2、注意:an interesting book (用an, 不用a);3、one of you 你们中的一个人的意思。
同样可以说:one of them, one of us, one of the pictures, one of the toys,...4、用when引导的句子表示时间,可以有良种写法:1) I often clean my house when I have free time.2) When I have free time, I often clean my house.What are you doing?Where is he read ing?Who is clea ning the house?7、通过比较加深对两种时态的认识:They often play computer games.They are playing computer games.I often help my mother do housework.I am helping my mother do housework.8. an interesting book教如何区分a, an的用法时可以不将规律,用习惯来解释。