新概念2的Lesson70-80习题答案

Lesson70:
1．关键句型练习答案
A unaware of（1.2）; busy with（1.3）; sensitive to（1.5）; sure of(1.7); close to(1.8); sorry for(1.10)
B 1 of 2 in…at 3 in…for
4 to…about 5 with…on 6 at…with
7 to…for 8 in 9 to…to
10 of 11 on 12 for
13 from 14 at…of 15 on…about/of
16 for…with 17 at 18 of
19 to…to 20 with 21 to
22 of 23 of 24 to
25 for
2．多项选择题答案
1d 2b 3c 4c 5d 6b
7c 8a 9c 10d 11d 12c

Lesson71:
1．关键句型练习答案
C 1 shall have been working
2 have finished
D 1 had to go
2 should/ought to buy
3 should/ ought to have telephoned
2．难点练习答案
1 shop assistant 2 hung 3 hanged
3．多项选择题答案
1b 2d 3b 4b 5c 6c
7d 8b 9b 10c 11b 12a

Lesson72:
1．难点练习答案
A 1 miss 2 expecting 3 raise 4 lying
5 beats 6 quite 7 am used to 8 pick
9 price 10 cost 11 value 12 checked
13 accept 14 dress up 15 practise 16 amused
17 hung 18 late 19 hard 20 nearly
B 1 I to