话人往往带有某种感情色彩（如赞扬、欣赏、厌烦、批评、惊讶、不理解等）。例如： She’s always helping others. 她总是乐于助人。（表示赞赏） You are always talking in class. 你上课老是说话。（表示批评）
二、现在进行时的谓语部分构成
现在进行时在句式的变化上，都应在助动词be上做文章。 1、 肯定式：be（am, is, are）+ Ving(现在分词) 如： They are having an English class. 他们在上英语课。 2、 否定式：be(am, is, are) + not + Ving(现在分词) 如： They aren’t having an English class. 他们不在上英语课。
3、 疑问式：将be的具体形式（即am, is或are）提前到句首。如： Are they having an English class？ 他们在上英语课吗？
助动词变化口诀：变疑问，往前提，句后问号莫丢弃；变否定，更容易，be后not 莫忘记。 三、现在分词的变化规则
1、 一般在词尾加-ing（一般-ing）。例如： going，playing，knowing
2、 以不发音的字母e结尾，先去e再加-ing（去哑e）。例如：making，arriving，coming 3、以重读闭音节结尾，且词尾只有一个辅音字母时，先双写这个辅音字母，再加-ing（重闭单辅先双写）。例如：running，stopping，preferring
4、 以-ie结尾，先将-ie改成y，再加-ing。例如：tying，dying, lying
口诀：现在进行ing,以e 结尾要去e，除去几个特殊词，系住tie-tying死去die-dying要躺下lie-lying，直接ie变成y。 四、现在进行时态的常见提示语
1、在汉语中，通常有“在，正在”等提示词。如： 我在做作业。I am doing my homework.
2、在英语中，最常见的提示词有now，look，listen以及at the moment（此时此刻）等。如： Look，they are playing football. 瞧！他们在踢足球。 五、运用现在进行时常见的几个错误 1、把动词变成现在分词形式易出错。例： （1）误：They are swiming (swim) . 正：They are swimming (swim). （2）误：Jenny is plaiing (play) football. 正：Jenny is playing (play) football.
解析：A、动词变现在分词可有如下口诀:一般-ing；哑e先去e；重闭单辅先双写；-ie结尾y来替。
B、动词现在分词的变化规则要与名词变复数、动词变现单三等规则区分开来。 2、谓语部分的构成不完整：丢掉be动词，或忘记把动词变成现在分词。例： （1）误：Look! Two children flying (fly) a kite in the park.
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正：Look！Two children are flying (fly) a kite in the park. （2）误：Li Ming isn’t read ( not read) a book in bed now. 正：Li Ming isn’t reading ( not read) a book in bed now.
解析：现在进行时的谓语部分的构成是“be+现在分词”，二者缺一不可，这一点必须要牢记。 3、对动词或动词词组提问时，丢掉代动词doing。例： The students are singing in the room.(对划线部分提问) →误：What are the students in the room? →正：What are the students doing in the room?
解析：现在进行时态中对动作提问可记住此句式“What +be +主语+doing+其它?”或简写为“What......doing......? ”句式。
4、现在进行时态的谓语部分是并列结构时，容易忽视第二个以及第二个以后的动词用现在分词形式。例：
孩子们在跑还是在跳？
误：Are the children running or jump? 正：Are the children running or jumping?
解析: or连接的是两个并列成分，动词形式须一致。 Practice
（一）单项选择填空：
( ) 1、 Look! He _____their mother do the housework.
A. is helping B. are help C. is help D. is helpping
( ) 2 、_____are the boys doing ? They are singing in the room.
A. Who B. How C. What D. Where
( ) 3、 Don’t talk here. My mother _____ .
A. is sleeping B. are sleeping C. sleeping D. sleep
( ) 4、Danny ______. Don’t call him.
A. is writeing B. is writing C. writing D. writes
( ) 5、---- When_____ he_____back? ----Sorry, I don’t know.
A. does, come B. are coming C. is come D. is coming
（二）用括号中动词的适当形式填空
1、 It’s ten o’clock. My mother ________ (lie) in bed. 2、 What_______he ________(mend)? 3、 We ________(play) games now.
4、 What _______you_______ (do) these days? 5、 _______he _______ (clean) the classroom? 6、 Who_______ (sing) in the next room?
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7 、The girl_______ (like) wearing a sweater. Look! She _______ (wear) a red sweater today. 存在，所有，感官，认识，情感：（状态）
存在： keep ,stay , remain , be, consist of （由……组成）, contain 所有： have ,belong to（属于） , possess, own , hold
知觉： sound(听起来)，hear , look /seem /appear (看起来)， smell（闻起来）, taste（尝起来）,feel (摸起来) ， see ,
认识： understand, know, suppose, remember, admit, forget, believe, think 情感：like, love, hate , prefer,
Unit5 Water
Key words
1. drop 2. journey 3. quantity 4. experiment 5. fresh 6. salt 7. voice 8. reservoir 9. add 10.chemical 11. through 12.valuable 13.bit 14.bank 15.change 16. return 17. vapour 18. form 19. stir 20. continue 21.crystal Key phrases
1.turn off 关掉 turn on 打开 2. a bit 一点
3. pocket money 零花钱 4. be made up of 有某物组成 几分之几
quarter 1/4 half 1/2 two thirds 2/3 three fifths 3/5 先分子，再分母，
分子用基数，分母用序数，
当分子为大于1的整数时，分母要变复数。 把A加入B add A to/into B
e.g They cleaned me and added some chemicals to me. Mr. Li added some salt into the soup. 李先生向水中加了一些化学物质。 through across over辨析 through 穿越某一空间 e.g He went through the corridor. across 穿过某一平面 e.g He walked across the street. over 越过某一障碍物
e.g He ran over the buses, and went into Bainaohui. 使某物变……
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make sth. + adj. (clean / dry) e.g People will make me clean again. Mr. Li made the security guard very angry. 使某物保持某种状态 leave sth. adj.
e.g. I left the tap on in the bathroom. Please leave the door open.
Mr. Li left his computer on for the whole night. interesting / interested v+ing 令人xx的（东西） v+ed xx的（人）
e.g. The film is very interesting. Mr. Li is very interested. 拓展：对某物感兴趣的 be interested in sth.
e.g. Mr. Li is very interested in films.
Key sentences
1. It’s time for sb. to do sth. 某人该做某事了 It’s high time for sb. to do sth.
e.g Then it was time for people to clean me. 2. remember not to do sth. 记住不要做某事 remember to do sth. 记得做某事 e.g Remember not to late again for class. Remember to post a letter for me.
3. How much … is there…? 还有多少….（不可数）？ How many …. are there…? 还有多少….（可数）？
Key grammar
用little / few, a little / a few, many / much等谈论数量 little系列：little / a little用于不可数名词前 few系列：few / a few 用于可数名词前 e.g.
There is a little water in the bottle. There are a few bottles in the box.
带a系列：a little / a few 意为“一些“，虽然不多但仍然有一些 不带a系列：little, few意为“几乎没有”，表示否定， There are few people in the room.
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There is little water left in the bottle. quite a few 意为 “很多”
Mr. Li has quite a few Kingston flash drives.
many, much 不解释，再次提醒many修饰可数名词， much修饰不可数名词 Practice 一 单项选择
( ) 1. Will you go for a walk after _________ dinner ?
a. a b. an c. the d. /
( ) 2. —Carl, why not go and help your sister water the flowers there ?
—Why ________ ? I’m busy myself. Jack is lying on the grass doing something.
a. me b. I c. him d. he
( ) 3. My cousin is always busy with his work, He has ________ time to read newspaper .
a. little b. few c. a little d. a few
( ) 4. There is ________ sugar in my coffee. It’s too sweet .
a. too much b. too many c. too few d. too little
( ) 5. Alice looked ______the room, but saw no one .
a. around b. for c. at d. up
( ) 6. Ben:What did Peter drop _________ the river ? Alice:Maybe a stone.
a. in b. into c. on d. onto
( ) 7. It’s time ________ all of us to get ready for the quiz.
a. to b. of c. for d. at
( ) 8. There ___________ twenty attendants at the contest tomorrow .
a. are b. have c. will have d. will be
( ) 9. We should __________ the used water clean before it goes back into the sea .
a. keep b. make c. become d. turn
( ) 10. After I had a bath in the bathroom this morning, I _______ the tap on, This makes the bathroom full of water.
a. left b. forgot c. turned d. switched ( ) 11. We all should remember ________ water.
a. to waste b. wasting c. not wasting d. not to waste
( ) 12. If you _____ some salt to a glass of water, it _______and become part of the water.
a. add...... Disappear b. add......will disappear c. will add.......disappear d. will add....... Will disappear
( ) 13. When I was in Italy last year, I ________ a lot of famous cities .
a. visit b. visited c. visits d. am visiting
( ) 14. A reservoir is ______________ .
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