9.survival instincts（九单元）

1.a:2 heart 3 hands 4 blood 5 mouth 6 forehead 7 head

b:2 blood 3 forehead 4 mouth 5 hands 6 head 7 mind

c:2 racing 3 explode 4 pound 5 feel 6 pouring 7 dried

2.a:2 aSbT 3 aSbT 4 aSbT

b:2 always 3 tend 4 is 5 to 6 will

c:2 I tend to say the wrong thing.

3 When he's alone in the house, he often feels like phoning his friends.

4 Stephen's always complaining about his family.

5 When people start talking about politics I will walk away.

6 If I see people arguing I tend to step in and sort them out!

3.a:2 break 3 some 4 overdo 5 put 6 out 7 on top of 8 hard

b:2 on 3 out 4 Try 5 breath 6 rest 7 take 8 up

c:2 might 3 can't 4 might 5 can't 6 must

d:Possible answers: 2 must be exhausted 3 can't be very good 4 must be very boring 5 must be famous 6 can't have many friends

4.a:1f 2b 3d 4h 5e 6c

b:Correct order: 8, 4, 2, 1, 9, 7, 3, 5, 6

5.a:1 Because she is afraid of Harley.

2 She had caught her leg on a fisherman's hook. No, she isn't.

b:1a 2b 3b 4c .

Unit check 

1.2 mind 3 blood 4 soar 5 sweat 6 forehead 7 heart 8 cold 9 mouth 10 dried

2.2c 3a 4c 5b 6c 7b 8c 9a

3.2 soared 3 sweat 4 feet 5 on top 6 Chill 7 take 8 hard 9 deep