北师大版八上lesson8grammar&speaking& pronunciation(共36张ppt)

课件36张PPT。Unit 3Grammar & Speaking & PronunciationLesson 8 写出下列单词的比较级 1. tall _____ 2. quiet _____ 3. funny _____ 4. heavy _____ 5. thin_____ 6. big _____Revisiontallerquieterfunnierheavierthinnerbiggernice—nicer—nicestOral practiceJim—youngKate—youngerBaby—youngestyoung—younger—youngestOral practiceheavyheavy—heavier—heaviestOral practiceWe use superlatives to compare three or more people / things.What do we use superlatives to do ?We put _____ after the comparatives in a sentence. We put _____ before the superlative.than thecheap— small— nice — safe — happy — easy — big — wet — beautiful — delicious —cheapersmallernicersaferhappiereasierbiggerwettermore beautifulmore delicious— cheapest— smallest— nicest— safest— happiest— easiest— biggest— wettest— most beautiful— most deliciousHow to form comparatives and superlatives with adjectives?1. 规则变化： ① 单音节，一些双音节词在词尾加er变成比较级，加est变成最高级形容词的比较级和最高级How to form comparatives and superlatives with adverbs?单音节副词的比较级和最高级是在副词词尾加-er, -est构成。如： hard harder hardest fast faster fastest early earlier earliesthigh long old large late big hot easy heavyhighest longest oldest largest latest biggest hottest easiest heaviestLook at the examples and complete the table with comparatives.形容词的最高级常用“the + 最高级+ 比较范围”结构，比较范围为短语或从句。 She is the tallest one in her class. 她是班里最高的一个。形容词最高级前通常必须用定冠词 the。 The Sahara is the biggest desert in the world. 撒哈拉沙漠是世界上最大的沙漠。形容词最高级用法In our class, Pingping is the _____ (tall). Helen’s coat is the _____ (nice) of the three coats. 3. Lily is the _____ (old ) of the three.tallestnicestoldestExercises in class副词最高级的用法1. 最高级用于三者或三者以上的比较，副词最高级前定冠词the 可以省略，后面可以带of (in) 短语来说明比较的范围。 句型为：“A+ 动词+ (the) + 副词最高级+ of (in)…” 例如： She runs fastest of the three. 她是三人中跑得最快的。 She works (the) hardest in her class. 她是她们班上学习最用功的。2. Which (who) + 动词+ (the) + 副词最高级, A, B or C? 表示三个或三个以上的人或事物中“哪一个最……”。例如： Which runs fastest, a car, a train or a plane? 汽车、火车和飞机，哪一样跑得最快？Read about the swimmers and write sentences with superlatives about them.Example Mike is the youngest swimmer. Mike is the fastest swimmer. Talk to your classmates using the words in the box. fast, funny, old, strong, tall, youngA: Who is the fastest runner in our class? B: I think John is the fastest runner. A: Who is the … in our class? B: I think … is the …Example fast, funny, old, strong, tall, youngfastest, funniest, oldest, strongest, tallest, youngest1. The?fifth?orange?is_____?of?all.?Give?it? to?that?small?child.? ? A.?big ?B.?bigger? C.?the?bigger? D.?the?biggest 2. Mother?is?_____?in?my?family.? A.?busy ?B.?busier? C.?the?busiest? D.?more?busy3. Who?jumped _____ of?all?? ? A.?far? B.?farther? C.?farthest? D.?th ... ...