资源简介 unit 21. 一般现在时表示事情经常发生,一般现在时主要考虑加不加s,主语是三单,V1加s三单有:he / she/ it/ 一个人名/名词单数 / 不可数名词on the weekend=on weekends 在周末on可以表示“通过(线路或者网络),所以可以说:on the Internet/phone4. always/often /never/ hardly ever/ sometimes 在句子中的位置:实前情be后E.g. (1) She is always blue. 她总是很忧郁(2)She often plays computer games. 她总是玩游戏5. hard adj. 困难的=difficult;坚硬的adv. (雨/雪/风)大;努力(做某事)e.g. ①Math is really hard. 数学真的很难②Stones are hard. 石头很坚硬③It rains hard. 雨下得很大④work/study ...hard 努力工作/学习次数的表达:一次 once 两次 twice三次及以上: 基数词+ times (time表示时间的时候不可数,表示次数的时候可数)年龄的表达:有连字,没s;有s,没连字;名词前面用连字,单独使用用s三岁:3 years old / 3-year-olde.g. ① She is 3 years old. 她有三岁②She is a 3-year-old student. 她是个三岁的学生 (后面有名词,所以用连字符的)How问句(1)How old问年龄、年代。How old is your friend 你朋友多大了?How old is the bridge 这座桥有多少年代了?(2)提问数量,How many + 可数复How much+不可数How many pictures are there on the wall How much milk is there (3)How much物品的价格How much is this book How much are the apples (4)How long提问物体的长度、时间的长短。How long is the Changjia River 长江有多长?How long does it take you to do your homework every day 你每天花多长时间做作业?How far 问两地间的距离How tall问人(树)的高度how heavy问重量how wide问宽度how high可以询问建筑物、山峰高度。How far is it from the earth to the moon 从地球到月球有多远?How tall is Yao Ming 姚明身高多少?How heavy is that big box 那只大箱子有多重?How wide is the new street 这条新街有多宽?How high is the tower in Paris 巴黎的那座塔有多高?(10)How soon 表示“多久之后”,回答用:in+一段时间How soon will you be back 你多久后回来?---In 3 days.(11)How often对表示频率的副词或短语提问,回答用”次数+时间“How many times问“次数”How often does Mrs. Green go shopping ---Once a day.How many times do you go to Kunming ---3 times.full adj. (1)满的,饱的 e.g. I’m full. 我吃饱了忙碌的 = busy e.g. She is busy. 她很忙碌可能 maybe adv. / may be 情态动词+be动词原形解题思路:根据每个英文句子中都要有动词,句子中有动词用maybe,句子中没有动词用may beShe is maybe a teacher. 她可能是个老师She maybe a teacher.百分数的表达:基数词 percent of + 名词如果百分数修饰的名词做主语,动词根据这个名词决定e.g. ① 72 percent of water is in the sea. 72%的水在海洋里② 49 percent of students are boys. 49%的学生是男生不能同时使用,只能出现其一的词:(1)although...but... (2)because...so...13. go + 动词ing形式 表示“去做某事”e.g. go boating 去划船 go shopping 去购物 go skating 去滑雪 go camping 去野营14.例如 for example + 句子(句子就是有主语有动词)Such as + 词/词组die 死 v.---n. death 死---adj. dead 死的e.g. ① His grandfather died last year. 她爷爷去年去世② His death is a big loss. 他的离世是一个巨大的损失 [’s/形代 + death]③ This is a dead dog. 这是一条死狗16. however,= but 但是,然而 用来表示转折(前后不一致用转折)17. 全都 (1)三者以上全都:all (2)两个都:both ... and...全不 (1)三者以上全不:none (2)两个都不:neither ... or...“的”字的表达’s 表示有生命物体的“的” e.g. Lily’s book 莉莉的书(莉莉有生命)Of表示无生命的“的” e.g. the window of the room 房间的窗户(房间无生命)部分名词后只能用to表示“的”:key/ answer / door / bridge/way to…的钥匙/答案/门/桥/方式be good for sth./sb. 对…… 有好处 Exercises are good for you.锻炼对你有好处be good at sth 擅长于…… He is good at computer. 他擅长于电脑be good with sb. 善于应付…… He is good with kids. 他对付小朋友很有一套be good to 对…… 友好 He is good to me. 他对我很友好Here are the results. 这是结果 Here开头的倒装句,动词根据后面的名词决定e.g. Here is a bus. 这是一辆公交车21. not...at all 一点也不 【not否定v1,at all 放在句末】①I love you ---- I don’t love you at all②I am a student. ----- I am not a student.22.介词by(1)通过某种方式 I relax by watching TV. 我通过看电视放松(2)by+交通方式 “乘坐某种交通工具” I go to school by car. 我乘车去学校(3)by+时间 “到……为止” by 10:00 到十点为止(4)by+地点 “在……旁边” by sea 在海边23.花费(时间/金钱)(1)sb. Spend (时间/金钱) on sth. / (in) doing sth.(2)sb. Pay (金钱)for sth.(3)sth. Cost sb. (时间/金钱)(4)It takes sb. (时间/金钱)e.g. ① I spend 100 yuan on this book. 我花100元买这本书② I spend 100 yuan in buying this book.③ I pay 100 yuan for this book.④ This book costs me 100 yuan.=It costs me 100 yuan.⑤ It takes me 100 yuan.=This book takes me 100 yuan.解题思路:先看主语,再看介词“也”also放句中,位置:实前情be后 I also like you.Too放在肯定句句末 I like you,tooEither放在否定句句末 I don’t like you,either.None和no one的区别none可以指人,也可以指物No one只能指人so+形副 such+名Sometime 某时 some time 一段时间 【合起是某时,分开表示一段时】Sometimes 有时 some times 几次 【s合起是有时,s分开是几次】【词组翻译】1.help with housework 帮着做家务2.go shopping 去购物3.watch TV 看电视4.on weekends = on the weekend在周末5.go to the movies 去看电影6.once a week 一周一次7.twice a year 一年两次8.three times a day 一天三次9.next week 下周10.take the piano lesson 上钢琴课11.swing dance 摇摆舞12.play tennis 打网球13.stay up late 熬夜14.junk food 垃圾食品15.free time 空闲时间16.not…at all 根本不17.at most 至多18.at least 至少19.such as +词组 例如20.play together 一起玩21.read magazines 看杂志21.draw pictures 画画22.go to the dentist 看牙医23.the United States 美国24.more than 多于25.be full of 充满26 use the Internet 上网=surf the Internetplay computer games 玩电脑the answer to ... ...的答案the way to ... ...的方法game shows 游戏秀Old habits die hard 旧习难改【词性转换】1.health 健康 n.---adj. healthy 健康的---反义词 unhealthy 不健康的2.die 死 v.---n. death 死---adj. dead 死的3.write 写 v.---n. writer 作家4.little 少 ---less 较少---least 最少 +不可数名词5.different 不同的 adj.-----n. difference 不同点6.Careful 细心的adj.----adj. Careless 粗心的7.activity 活动------pl.------activities 活动8.Surprise v./n. surprised / surprising 令人惊讶的 展开更多...... 收起↑ 资源预览