初二英語.形容詞比較級.規(guī)則及練習(xí).doc

形容詞的比較級專項(xiàng) 一、 變化規(guī)則； 1、 規(guī)則變化：(1) 單音節(jié)形容詞的比較級和最高級形式是在詞尾加 -er 和 -est 構(gòu)成。great-greater- greatest(2) 以 -e 結(jié)尾的單音節(jié)形容詞的比較級和最高級是在詞尾加 -r 和 -st 構(gòu)成。wide-wider-widest(3)少數(shù)以-y, -er, -ow, -ble結(jié)尾的雙音節(jié)形容詞的比較級和最高級是在詞尾加 -er 和 -est 構(gòu)成。 clever-cleverer-cleverest(4) 以 -y 結(jié)尾,但 -y 前是輔音字母的形容詞的比較級和最高級是把 -y 去掉,加上 -ier 和-est 構(gòu)成. happy-happier-happiest(5) 以一個輔音字母結(jié)尾其前面的元音字母發(fā)短元音的形容詞的比較級和最高級是雙寫該輔音字母然后再加 -er和-est。 big-bigger-biggest(6) 雙音節(jié)和多音節(jié)形容詞的比較級和最高級需用more 和 most 加在形容詞前面來構(gòu)成。 more beautiful (比較級) more difficult (比較級) most beautiful (最高級) most difficult (最高級)(7) 部分形容詞本身表示最高級，因此他們沒有比較級和最高級形式：favourite round 2、不規(guī)則變化 good better best many more most much more most bad worse worst ill worse worst little less least 注：只有少數(shù)形容詞和副詞有兩種比較級和最高級形式： clever- cleverer- cleverest或 clever - more clever - most cleverfar - farther/further - farthest/furthest old-older-oldest 或old-elder-eldest二、 形容詞各等級的用法： 1、 原級（同級）比較：asas; not as(so)as Well give you as much help as we can. She isnt as(so)active in sports as before. 2. 比較級：表示兩者之間比 更可用狀語much, a little, even等修飾： He made fewer mistakes than I did. He is even richer than I. 3、 高級：形容詞最高級前必須加the, 副詞最高級前常省略the，后面多用of， in短語表示范圍： It was the most/least interesting story I have ever listened. He is the tallest of the three. 4、 如果在兩者之間表示“最”時要在比較級前加the，而且還用of the two, of the pair短語： John is the clever of the two boys. Of the two boys, John is the clever. 三、 重點(diǎn)與難點(diǎn)： 1、 asas結(jié)構(gòu)：你和湯姆是一樣好的孩子。 Youre a boy as good as Tom.=Youre as good a boy as Tom. 2、 (1)tooto與 sothat sb.cant的句型轉(zhuǎn)換：前者為簡單句，主語只有一個，而后者為復(fù)合句，主語有兩個，試比較： The man was too angry to be able to speak. The man was so angry that he wasnt able to speak. The milk was too hot to drink. The milk was so hot that we cant drink it. (2) tooto與 not enough to句型的轉(zhuǎn)換： He is too young to get married.=He is not old enough to get married. The book is too difficult for me to read.= The book is not easy enough for me to read. 3、 形容詞原級表示比較級含義： 約翰不象邁克那么苯。John is not so stupid as Mike. John is less stupid than Mike. John is cleverer than Mike. 4、 用比較級表示最高級：約翰是班里最高的男生。 John is taller than any other boy in the class. John is the tallest boy in the class. John is taller than :any other boy. any of the other boy. all the other boy. any of the others. any one else. 5、 the more. the more.表示“越越”: The more books you read, the wider your knowledge is. The more food you eat, the fatter you are. 6、 more and more.表示“越來越”: More and more students realized the importance of a foreign language. Our country is getting stronger and stronger. 四、 鞏固練習(xí)： （一） 寫出下列形容詞與副詞的比較級與最高級形式： long_ _ wide _ _ fat _ _ heavy_ _ slow _ _ few_ _ brightly_ -_ bably _ _ far_ _ quickly _ _ happy_ -_ unhappy_ (二)用所給詞的正確形式填空： 1. Of the two girls, I find Lucy the _ (clever). 2. Gold(黃金) is _ (little) useful than iron(鐵). 3. My sister is two years _ (old ) than I. 4. Johns parents have four daughters, and she is the _ (young) child. 5. The _ (cheap) bags are the not usually the best ones. 6. The short one is by far _ expensive of the five. 7. The boy is not so _ (interesting) as his brother. 8. Dick sings _ (well), she sings _(well) than John, but Mary sings_(well) in her class. 9. She will be much _ (happy) in her mew house. 10. This dress is _ that.(twice, asas, expensive) (三)選擇填空： 1 He feels _ today than yesterday. A. tired B. more tired C. more tireder D. much tired 2. Which do you like _, coffee, tea or milk? A. the worst B. worse C. the worse D. worst 3. Of the two toys, the child chose_. A. the expensive one B. one most expensive C. a least expensive D. the most expensive of them 4. The line is _ than that one. A. more longer B. not longer C. much more longer D. many more longer 5. The earth is _ the moon. A. as 49 times big as B. 49 times as bigger as C. 49 times as big as D.as big as 49 times 6. The book is _ of the two. A. thinner B. the thinner C. more thinner D. the thinnest 7. She looks _ than she does. A. the more older B. very older C. much older D. more older 8. The garden is becoming _. A. more beautiful and more B. more beautiful and beautiful C. more and more beautiful D. more beautiful and beautifuler 9. They competed（比賽） to see who could work _. A. the fastest and best B. the faster and the better C. fastest and better D. faster and better 10._ hurry, _speed. A. More, less B. Much, little C. The more, the less D. The much, the little 11. This kind of coffee is different _. A. and it is also better B. and better than the other C. but also than others D. from the other, and better (四)翻譯句子： 1 本書跟那本書一樣有趣。This book is _ _ _ that one. 2 你游泳沒有你弟弟好。You cant swim _ _ _ your brother. 3 今天比昨天冷的多。It is _ _ today_ it was yesterday. 4 對這個故事我比另一個喜歡的多。This story is _ _ _ than that one. 5 他比我大兩歲。He is _ _ _ t