北京市房山区周口店中学高中英语 unit 7 lesson3 grammar课件.ppt

? Write the adjectives in the correct form ? Dolphins are (1 small) ______ than whales but they are probably (2 intelligent) ________________ creatures in the sea. (3 big) _________ dolphins can measure four meters mon dolphins are usually less than two metres long. smaller the most intelligent The biggest 1 ? Dolphins are one of (4 friendly) __ ? ___________ creatures to man and ? often follow ships. Dolphins also have ? a (5 good) _______ system of ? communication than other animals. ? They are (6 easy) ___________. ? Of all animals to train and are often ? (7 popular) ______________ animals ? with children round the ? world. the friendliest better the easiest the most popular 2表示两者做比较,用比较级. xiaoYin San mao Sanmao is younger than XiaoYin. XiaoYin is older than San mao. 3ABc C is the tallest of the three . B is the shortest of the three . 三者,或三者以上比较用最高级 4 Translate the following sentences: can eat fish as big as themselves. 2. Some fish can produce sounds almost twice as loud as your speaking voice! 5 Grammar ?两者相比(甲=乙),用“ as+ 原级+ as ”表示 Tom is as tall as Jack. She could do as well as a man. ?表示“甲几倍于……乙时”,用“倍数+ as … as ”来表示 This kind of plane flies three times as fast as that kind. 6 P58 is as tall as Brian. iceberg is as big as a house. 3. The toadfish is as noisy as a rock concert. bracelet is as beautiful as yours. 5. puter is as reliable as my car. 6. My earrings are three times as expensive as my CD player. 7 Translate the following sentences are less colourful than some other fish … is not as big as a fly in your house. 8 ?两者相比(甲<乙) 用“ not (so)+ 原级+ as ”或 less +原级+ than 表示 She is not so careful as you. She is less carefully than you. 9 P59 1. Mary is not as tall as Brian. Mary is less tall than Brian. games are not as exciting puter games. Video games are less exciting puter games. is not as interesting as reading. Chess is less interesting tha