Chapter 3 Environment（通用2篇）
Chapter 3 Environment 篇1
using adjectives teachingaims1. get the students to continue to learn the use of adjections.2. get the students to practise using adjections.在上一單元，我們學習了形容詞的三大功能（即：定語、表語和賓語補足語）和兩個句型（即：it’s + 形容詞+ ( for sb) + to do … / 主語 + be + 形容詞 + to do…）。我們還學習過形容詞的其他用法，如：形容詞的比較等級的用法。( 注意：副詞也有比較等級，副詞的比較等級用法和形容詞相同)形容詞的比較等級是初中英語的重要語法項目，也是中考的熱點問題�，F在我們就形容詞和副詞的比較等級的�？贾R點作復習和歸納。 i. 形容詞的比較等級：大多數的形容詞有三個等級：原級，比較級和最高級。原級即形容詞的原形。比較級和最高級的變化，分規則變化和不規則變化兩種。（1） 規則變化。單音節詞和部分雙音節詞的變化如下表：
構成法
原級
比較級
最高級
一般加-er, est
long
cold
longer
colder
longest
ccoldest
以 結尾的詞，只加-r , -st
nice
large
nicer
larger
nicest
largest
以一個輔音字母結尾，前面的元音讀短音時，要雙寫結尾的輔音字母，再加-er , -est
big
fat
bigger
fatter
biggest
fattest
以輔音字母加 結尾的詞，改y 為 i ，再加-er , -esteasy
busy
easier
busier
easiest
busiest部分雙音節詞和多音節詞，在前面加 或 來構成比較級和最高級：原級 比較級 最高級slowly more slowly most slowlybeautiful more beautiful most beautiful（2） 不規則變化如下表：原級比較級最高級good , wellbetterbestbad , ill worseworstmany , muchmoremostlittlelessleastfarfarther, furtherfarthest , farthestoldolder , elderoldest , eldestii. 形容詞和副詞比較等級的用法：（1） 表示兩者之間的比較時，用“形容詞比較級 + than”句型。the sun is bigger than the earth.（2） 表示兩者以上的比較時，用“the + 形容詞最高級（ + 名詞）+ of(in)… “的句型。my brother is the tallest in his class. (3) 表示兩者是同等程度，用“as +形容詞原級/ 副詞 + as”句型, 意思是“ 和…… 一樣”。表示兩者不同程度時，用“not so (as) + 形容詞原級 / 副詞 + as”的句型，意思是“不如……”.它可與比較級互換。this book as good as that one.li ping is not as old as wei fang.swimming is not as interesting as fishing. = fishing is more interesting than swimming.試分析下列練習：1. my coat is _________ than yours.a. expensive b. more expensive c. much more expensive d. much expensive 2. shanghai is one of _________ cities in our country.a.large b. larger c. largest d. the largest3. which subject is __________ , math or english?a.easy b. easier c. easyer d. easiest4. of all the students in our class, betty write _________.a. very careful b. the most careful c. the most carefully d. more carefully5. jack doesn’t jump so _________ as his brother.a. high b. higher c. highest d. more high6. it was ________ cold yesterday. a. terrible b. terribly more terrible d. most terrible(4) 常用的一些原級比較的結構還有：1. “as many / much as” 意思為“同數量的…… ; 一樣多”。 he has as much money as john. you can sell as many newspapers as i.2. “ as many / long / high … as + 數字”表示“多達 （ 長達、高達）……”.。 i have learned english for as long as 15 yeaars. the building costs ran up to as much as 20 million yuan.3. the same as / different from / like; 當我們要表達“某一事物與另一事物相同時，用“ a is the same as b”句型。當我們要表達某一事物和另一事物不同時，用“a is different from b” 句型。當我們要表達某一事物與另一事物相像時，用“a is like b” 句型。 my watch is the same as yours. tom’s coat is different from nick’s. mr wang’s car is like my father’s. 這三個結構中所使用的動詞多為be, 但有時也用look, sound, taste, seem 等系動詞。that girl looks like her mother.this song sounds different from the one i like. the same as 也可分解為the same ……as, same 后面通常跟age, kind, length, colour, height, size, amount 等名詞。有時the same … as 也可與as … as 互換使用。 the ruler is the same length as that one. = this ruler is as long as that one.試完成下面的練習：1. david 和 simon 一樣高。david is ____________________ ( tall). = 2. david 的體重不如simon. david is _____________________(heavy).=3. 我的書不如你的書多。i don’t have __________ _________ _________ as you.4. 格林一家和懷特一家扔掉的垃圾一樣多。the greens throw away __________ _________ rubbish ________ the whites.5. 這次事故中多大一百人喪生。__________ __________ __________ 100 people were killed in the accident.6. 一天的費用可高達500 元。the cost of one day can be ________ __________ _________ 500 yuan.7. 這兩姐妹看上去一樣。the two sisters _________ __________ _________.8. 這條裙子與那一條不同。this skirt is _________ _________ _________ that one.9. 聽起來像個好主意。that __________ __________ a good idea.10. 兩頂帽子一樣。the two hats _________ __________ __________. = 11. 我和你年紀一樣。i am __________ __________ _________ _________ you. = 近年來在中考出現的對形容詞和副詞的比較等級的考查舉例如下：考點一：對比較級的考查1. mike looks _________ than paul, but they are the same age.a. youngest b. the youngest c. younger d. very young形容詞后面有than時，應該用形容詞的比較級形式。應選c.2. in the exam, the more careful you are, ____________ mistakes you will make.a. the fewer b. the fewest c. the less d. the least“the + 比較級，the + 比較級”是比較級的一個固定句型，表示“越…… , 就越……”。 由此可排除b, d 兩項；又因為mistake 是可數名詞，不能用less 修飾，所以選a.3. i love shenzhen because it is becoming ___________________.a. more and more beautiful b. beautiful and beautifulc. clean and clean d. more and clean“比較級+ and + 比較級”也是比較級的一個固定句型，表示“越來越……” ; 如果是多音節的形容詞，則用“more and more + 形容詞原形”所以選a.。考點二：考查比較級的修飾語4. “please don’t be angry with me,” said amy laughingly. this make me even _________.a. angry b. angrier c. angriest根據題干的邏輯結構和程度副詞even 的使用，應填形容詞的比較級形式，所以選b。比較級可以被表示程度的副詞或短語修飾，這些表示程度的修飾語主要有even, still, far, much, a lot , a bit, a little, any 等。考點三：對形容詞最高級的考查5. beijing, the capital of china, is one of __________ cities in the world.a. the biggest b. bigger c. much bigger d. big“be + one of the + 形容詞最高級 + 名詞（復數）+ 范圍”是最高級的一個固定句型，意為“…… 是最…… 之一”，所以選a.用所給詞的正確形式填空：who’s _________ ( tall ) , kitty or mary?the changjiang river is one of the _________( long ) rivers in the world.the chinese people have a much _________ ( good ) life now.
形容詞和副詞比較等級專練teaching aimget the students to practise using adjections.i. 根據句子的意思，從括號中選擇正確的內容填空，使句子完整，通順：1. it’s very cold today, but it seems to be ____________ tomorrow. ( colder, coldest)2. he has _________ homework to do than i today. ( much , more)3. my room is twice _________ than my sister’s .( large , larger )4. this coat is much _________ than that one. ( expensive , more expensive)5. chapter 2 is _________ of all the chapters in this books.6. she is __________ among the girls. ( heavier , the heaviest)7. tom wrote as __________ as ken. ( careful , carefully )ii. 用括號中所給單詞的適當形式填空：exercise one is __________ (easy ) than exercise two.please listen to the teacher __________ ( careful ).i don’t think it is a difficult math problem. he can work it out ( easy).shenzhen is one of ____________ ( beautiful ) cities in our country.july and august are the _____________ ( hot ) months in a year.he is too tired to go any ______________ ( far ).which jacket is _____________ ( expensive) , the blue one , the green one or the brown one.read this passage as ____________ ( quick ) as you can.there is ________________ （little ）milk in this glass than in that one.jack doesn’t jump so __________ ( high ) as tom.iii. 選擇填空：which pen do you like _________ , the red one or the black one?a. good b. better c. gooder d. besttom draws _______ . he draws _________ than mike and john. he draws ________ among the three boys.a. good, better, best b. well, better , best c. good, good, best d. well, well, betterhe is __________ enough to go to school.a. older b. oldest c. big d. oldthat was one of __________ moments of that year.a. exciting b. more exciting c. the most exciting d. most excitinglook! he is running __________ .a. faster and faster b. fast and fast c. fastest and fastest d. fastly and fastlydo you get up _________ your parents?a. early b. earlier c. as early as d. as earlier asdo you speak english ____________ your parents?a. best than b. well than c. as good as d. as well aswhich is __________ , a chick, a sheep or a horse?a. heavy b. heavier c. heaviest d. the heaviestiv. 完成下列句子：1. the girl is now ______________________ (高得多) than she was a year ago.2. millions of stars are even ______________________ (大和明亮 ) than the sun. they look small only because they are _________________（遠得多） away3. china is __________________ (最大的國家之一) in the world.4. does mary write ______________________ (一樣認真) as betty?5. this elephant is _________________(強壯) , but that elephant is ___________(強壯一點) than this one.6. do you think chemistry is ______________________ (有趣)?7. it’s ___________ (熱) today than yesterday.8. when a piece of ice is taken into a warm room, it becomes ________________________(越來越小) .9. in summer it’s _____________________ (涼爽) in beijing than in guangdong.10. my brother _________________________________(跳舞不如我妹妹好).11. he is ________________________(和我一樣高) , but he is ______________________(比我瘦很多).12. exercise one is ______________________(難得多) than exercise two.
Chapter 3 Environment 篇2
chapter 3 environment
(periodⅱ)
date: march 18th ,
學科：英語 授課年級：八年級
teaching material: oxford english 8b
teaching goals:
1. knowledge goal
students are able to have a detailed understanding of the reading text.
2. ability goals
(1) know about the effects of the greenhouse effect and destruction of rainforests
(2) practice speaking through the four main topics in the reading text
(3) learn to work in groups
3. emotional goal
students raise their awareness of protecting the environment as green consumers
important points:
detailed understanding of the four main topics in the reading text
difficult points:
two environmental problems (the greenhouse effect, destruction of rainforest)
teaching procedures
step 1 leading-in
1. sing a song
2. watch the video water world and then answer some questions about the video to lead in the new lesson.
step 2 pre-reading
raise the two environmental problems
step 3 while-reading
1. learn about the first environmental problem: the greenhouse effect;
brainstorming: is greenhouse effect important or harmful?
use the key words to talk about the importance and harmful effects of the greenhouse effect
2. learn about the second environmental problem: destruction of rainforests
watch a video and raise the topic.
ask some questions about the topic
what can trees do for us?
what may happen if trees are cut down?
3. talk about the causes of the above environmental problem—bad habits
free talk: human beings’ bad habits of polluting the environment
results of the bad habits, raise the phrase- environmentally friendly
4. a survey about the text
finish a survey form in a group of four and two students report the results
step 4 post-reading
a task: finish a poster in groups
1. look at the pictures of beautiful scenic spots in shenzhen.
2.find out different kinds of pollution in shenzhen
(1) as green consumers, how can we make shenzhen more beautiful?
(2) students’ presentation.
step 5 homework
1. listen to the tape and read the article, and try to imitate the tape.
2. make a poster ‘how to make shenzhen more beautiful’ individually.
3. finish part c&d on page 32&33 in the textbook.