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Book B Unit 4答案


Book B Unit 4

Vocabulary
? ? ? ? ? ? A1e 2.b 3.c 4.a 5f 6. d ? ? ? ? ? ? ? B 1.invent 2.at the same time 3.century 4.lamps 5.Since then 6.anytime

Grammar
? ? ? ? ? ? ? A1 1.good 2.worst 3.better 4.best 5.worse 6.bad ? ? ? ? ? ? ? ? A2 2.best 3.worst 4.farthest/furthest 5.farther/further 6.worst 7.better 8.farthest/furthest

? ? ? ? ? ?

B1 2.isn’t as expensive as 3.isn’t as cheap as 4.is as tall as 5.isn’t as deep as 6.isn’t as wide as B2 3.Carol buys as many books as Jim every month. ? 4.Luke spends as much money on food as Kate every month. ? 5.Luke doesn’t spend as much money on clothes as Jim every month. ? 6.Kate doesn’t spend as much money on food as Jim every month.

? ? ? ? ? ? ? ?

C 1.as good as 2.not as expensive as 3.as many; as 4.better 5.worse 6.better 7.farther/further

Listening
? ? ? ? ? ? ? ? ? A 1.b 2.c 3.b 4.c B 1.The television, the lights and the temperature. 2.To work hard and never give up. 3.They have to experiment hundreds of times. 4.It makes inventions of little use in everyday life. 5.a Umbrella-hats. b Office shirts with calculators on them

C
? 1.They went to a competition for young inventors. ? 2.They went there in a truck. ? 3.They got stopped under a low bridge. ? 4.Because the truck was too tall to go under the bridge. ? 5.They let some air out of the truck’s tyres.

Reading
? A 1.d 2.b 3.e 4.a 5.c ? B 1.T ? 2.F; They taught themselves Maths and engineering. ? 3.T ? 4.F; Orville made the first successful flight before Wilbur, on 17 Dec. 1903. ? 5.T

? ? ? ? ? ? ?

C 1.Alexader Fleming 2.1881 3.doctor 4.penicillin 5.1928 6.It can kill bacteria and help save people’s lives.

Writing
? AIBO ? AIBO looks like a lovely puppy. It can touch, see and hear. It first appeared in 1999. When it wants to show its feeling, it can move its body or change the colour of its eyes. ? Roomba ? Roomba became famous as soon as it appeared in 2002. It can clean the floor without help. It also avoids the furniture and the stairs. ? ASIMO ? ASIMO is the newest model. It appeared in 2011. It can walk, run and climb the stairs just like a human being, and it can work as a waiter in a coffee shop.

Intergration
? ? ? ? ? ? ? ? ? A 1.American 2.1945 3.produce 4.next to 5.soft 6.cook things 7.350 8.fridge

? ? ? ? ? ? ?

B 1.photographer 2.if all its legs left the ground 3.took one picture as the horse moved 4.the horse was moving 5.24 to 30 pictures for frames C 1.b 2.a 3.b 4.c 5.d 6.b 7.a 8.c

D2
?

? ?

?

? The most useful invention All these inventions have helped people live a better life, but we think the Internet has changed the world the most. It has made the world seem much smaller. This invention has made it possible for everyone to be connected. In the past, Without the Internet, our life would not be so convenient and information could not be passed so quickly between people. We think the Internet is the most useful invention. It has changed the world around us.


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