【正文】 problems seriously, the earth worse and worse. (2022呼和浩特 ) A. don39。t rain C. isn39。t get up early. (2022天津 ) A. but B. if C. and D. although ( )2. The children will climb the hill if it tomorrow. (2022鞍山 ) A. won39。 課堂練習(xí) 一、用所給單詞的適當(dāng)形式填空 1. He ________ (help) you if you are in trouble. 2. If Tom ________ (join) the club, he __________(learn) many things. 3. I ________ (visit) the Bund if I ________ (go) to Shanghai. 4. You can have a good dinner if you ________(e) to my home tonight. 5. If you feel tired, you can ________ (take) a break. will help joins will learn will visit go e take 6. Put on the coat if you _______ (feel) cold. 7. _______they _______ (play) basketball if the weather _______ (be) good? 8. What _______ he _______ (do) if he _______ (know) it? 9. If he _______(watch) TV too much, his parents _______ (not be) happy. 10. Spring _______ (e) if winter _______(end). feel Will play is will do knows watches won39。若if條件句放句首，從句后面要用逗號(hào)和主句隔開。 If you heat ice, it turns to water. 如果你把冰加熱，它會(huì)化成水。t sleep any more. 如果我們的老師來了，你就不能再睡覺。 （ 3）如果主句含有情態(tài)動(dòng)詞 (may / might / can / must / should等 )，根據(jù)需要從句多用一般現(xiàn)在時(shí)（即“主情從現(xiàn)”）。 （ 2）如果主句是祈使句，那么從句通常要用一般現(xiàn)在時(shí)（即“主祈從現(xiàn)”）。 if條件句的時(shí)態(tài)，常見的有以下四種情況： （ 1）條件狀語從句的主句是一般將來時(shí)，那么從句常常用一般現(xiàn)在時(shí) (即“主將從現(xiàn)” )。 if引導(dǎo)的條件狀語從句表示在某條件下，某事很可能發(fā)生，條件是可能存在的，主句中某事發(fā)生的概率也是很高的。即主句是將來時(shí)態(tài)時(shí)，從句用一般現(xiàn)在時(shí)代替將來時(shí)。s shopping centre. D. Among the hotels, Sheraton Hong Kong Hotel is the most expensive one. D 第 3課時(shí) Grammar 語法聚焦 條件狀語從句 1. 條件狀語從句的概念 條件狀語從句，表示主句動(dòng)作發(fā)生的條件 ,由連接詞 if或 unless等引導(dǎo)。ll tell you. ________（ direct） us to leave the burning building. sightseeing beauty lights buildings es directed 二、閱讀理解 Mira Hong Kong Hotel (￥ 1,310 a night) 118 Nathan Road, Tsim Sha Tsui, Kowloon. This hotel is in the middle of Hong Kong39。 應(yīng)用 ( )Our school is located ________ the centre of the town. A. on B. in C. as B 一、用所給單詞的適當(dāng)形式填空 1. We ran out to the _______(central) of the city this morning. 2. The teacher draws a map of _______(Asian) on the blackboard. 3. My mother bought me lots of ___________(tradition) books and magazines. 4. A snake wriggled(蜿蜒而行 ) _______(cross) the road. 5. You should treat us as part of the ___________(nature) world. centre Asia traditional across natural 6. I want to go ____________ (sightsee) and enjoy the natural ________(beautiful). 7. It39。 in the middle of a day 在一天的中間 Don39。 The new library was built in the centre of the campus. 新圖書館建在校園的中心。如： the centre of a circle 圓心 the centre of the ball 球心 （ 2） centre還可表示中心區(qū)、中心站或重要活動(dòng)的中心。 拓展 （ 1） centre 意為“中心點(diǎn) 。 【用法】 in the centre of意為“在 …… 的中心”。 拓展 形容詞最高級(jí)的形式變化： （ 1）一般在詞尾加 est： tall→tallest ；small→smallest （ 2）在以字母 e結(jié)尾的形容詞后加 st： nice→nicest ；large→largest （ 3）在以輔音字母加 y結(jié)尾的形容詞后，先改 y為 i再加 est： heavy→heaviest ； happy→happiest （ 4）重讀閉音節(jié)詞只有一個(gè)輔音字母時(shí)，先雙寫輔音字母再加 est： big→biggest ； thin→thinnest ；hot→hottest （ 5）大部分雙音節(jié)詞及多音節(jié)詞，在其前面加 most 應(yīng)用 （ ） The Changjiang River is one of in the world. A. the longest river B. longest rivers C. the longest rivers C 【要點(diǎn) 2】 People39。 【用法】 one of+the+形容詞最高級(jí) +復(fù)數(shù)名詞 / 代詞，意為 “在 …… 中最 …… 之一”，當(dāng)其作主語時(shí)，謂語動(dòng)詞用單數(shù)形式。d better not C. It doesn39。m very sorry I am late. It is too crowded in the street. — . Better late than never. A. It39。 from C. steals。s the meaning of this word? — If you say that it is for someone to act in a particular way, you mean that it is reasonable in the circumstances. A. modern B. natural C. interest ( )12. — Peter is a clever boy, he is too lazy. — That is why he always fails the exams. A. so B. but C. and B B ( ) 13. — do you go home? — By train. A. How B. How often C. How many ( )14. — What happened to the woman? — The thief a purse her yesterday. A. steal。s raining heavily outside. A. must B. may C. can A A ( )5. — I want to visit the centre of the city. Would you like to go with me? — That is a good idea! A. front B. middle C. part ( )6. — He has a very modern house in Shenzhen. It is very expensive. — He is a rich man. A. old and clean B. old and dirty C. new and fashionable B C ( )7. — What does she like to do in her free time?