2015年秋起英语综合练习册八年级上Unit2答案

Vocabulary
A1~6 instructions, Check , amount, instead , copied , accident
B 1~6 a long time ago , numbers , challenged… to , instructions , correctly, check
Grammar
A1 2~ 14 ninety, seventy-third, thirty-first , fifty-five, forty-second, one hundred, two hundred and ninety-seven , three thousand , ten thousand , eight thousand four hubdred and thirty-one, one hundred and fifty thousand, eighteenth, hundredth
A2 3 Mrs He lives on the third floor.
     4Miss Huang lives on the fourth floor.
     5 Mr Li lives on the seventh floor.
     6 Mr and Mrs Lin live on the tenth floor.
     7 Ms Luo lives on the eleventh floor.
     8 Mr and Mrs Williams live on the twelfth floor.
A3 2~5 the eighth of March, the twelfth of March, the tenth of September, the first of October
B1 2~7 Multiply by , Divide by, Add and, Divide by, Subtract from, Multiply by
B2 3~10 minus, divided,?,?,by, from,Subtract,and
B3 2 What is 452 minus 69? It is 383
     3 What is 270 divided by 3? It' 90
     4 What is 521 plus 770? It's 1,291
     5 What is 56 multiplied by10? It's 560
C 1~6 second,plus,added,divided,hundred,numbers
Listening Sorry! Omit
Reading
A1~4 cbcb
B 1 There are more than 7 billion people in the world today.
   2 The world population is doubling every forty years.
   3 Because people now live longer lives and there are more families.
   4 Because there were no hospitals or doctors.
   5 It will make life more and more difficult for us all because of the population.
C1 1~9 China,1283,1350,alarm clock,1462,Italy,1790,wrist watch,digital clock and watch
C2 1~3 alarm clocks → sundials,     two hands → one hand ,       became → did not become
Writing
Dear Mary,
I have good news to tell you.I won a writing competition last week and the prize was￥1,000. I would like to spend the money on these things：
First,I would like to buy an electronic dictionary.It cost about ￥300.I will use it to help me learn English.It will save me a lot of time.
Second,I would like to buy ten books.They cost about ￥200.Reading is my hobby.You can borrow my books if you like.
Third,I would like to buy a big new school bag.It costs about ￥200.My old one is too small.I want to save the rest of the money.
Best wishes, Mike
Integration
A 1 He worked on the computer for nearly three hours.
  2 Sammy and a girl got into the lift.
  3 She lives on the 10th floor.
 4 It stopped at the second floor and the fifth floor.
 5 He lives on the 25th floor
B1~8 two,numbers,The Indians,zero,abacus,computers/the computer,living,fifty seconds
C1~8 abbdb  dac
D2 1~10 difference,twenty,on foot,fell,fell,30%,rose,by car,21％,
     take the underground to get to school.
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