课件20张PPT。Modern machinesUnit ThreeAre computers already cleverer than people ? 计算机已经比人聪明了吗 ？你实际上比你所意识到的更依赖计算机。You are more dependent on computers than you know.你对事物的理解力比计算机更深刻。You have greater understanding ...... than computers.计算机会做的事情可能要比人脑会做的多。Computers may be able to domore things thanA The comparative of adjectivesWhen we compare two things, we add –er to short
adjectives and use more with long adjectives.Example: cheap --- cheaper
high --- higher
useful --- more useful
expensive --- more expensiveA The comparative of adjectivesWe often use than when we compare two things. Books are cheaper than computers.
Computers are more expensive than books.
DVD光盘比CD光盘可以容纳更多的信息。A DVD-ROM can hold even more information than ... CD光盘和DVD光盘将会比书籍更受欢迎。DVD-ROMs will become even more popular than books.is ____________ thanis ____________ thanis ____________ thanis ____________ thanis ____________ thanbiggertallerstrongerheaviercleverermore expensiveheaviersmallercheaperbiggerlightermore expensivecheaperbiggerheavierlightersmallerB The superlative of adjectivesExample: fast --- the fastest
high --- the longest
essentiial --- the most essential
interesting --- the most expensiveWhen we compare more than two things, we add –est
to short adjectives and use most with long adjectives.C is the tallest boy in his family.Which is the smallest, a bee, a butterfly or an ant ?An ant is the smallest. Which is the largest, the Atlantic, the Pacific or the Indian Ocen ?The Pacific Ocean is the largest. Which is the most valuable, iron, silver or gold ? Gold is the most valuable. Which is the hottest, the North Pole, the South Pole or the Gobi Desert ? The Gobi Desert is the hottest. Which is the heaviest, a bear, a whale or an elephant ? A whale is the heaviest ? Which is the fastest, a spaceship, a plane or a train?A spaceship is the fastest. C The comparetive and superlative
of good and bad ( 不规则形容词 )Example: good --- better --- the best (好)
bad --- worse --- the worst (坏)
many( much ) --- more --- the most (多)
little --- less --- the least (少)
far --- farther --- the farthest (远)Alice PeterDaisyBelinda PaulEric Martinthe biggestmore beautiful the cheapestthe strongestthe most widely※ 课堂练习My sister is ______than Richard. ( old )
He has _____ homework to do than I do today. ( much )
Is football ____________ than volleyball? ( exciting )
The town is ________ than it used to be. ( clean )
I’m ________ than his brother, Jim. ( clever )
I think she looks ________ than in the photo
( pretty )oldermoremore excitingcleanerclevererprettier ※ 课堂练习7. This is _______city that we have ever visited.( good)
8. It was _________day of his life. ( bad )
9. Susan’s flowers are _____________ of all. ( beautiful )
10. Sue is __________ of the girls in the class. (careful )
11. She answered all the questions except _____ _____
______ one.( difficult )
12. Winter is ______than autumn; it is __________
of the four seasons.the bestthe worst the most beautifulthe most careful the mostdifficultcolderthe coldest※ 课堂练习My sister is ______than Richard. ( old )
He has _____ homework to do than I do today. ( much )
Is football ____________ than volleyball? ( exciting )
The town is ________ than it used to be. ( clean )
I’m ________ than his brother, Jim. ( clever )
I think she looks ________ than in the photo
( pretty )oldermoremore excitingcleanerclevererprettier
