选修
7 Unit3

课时作业
(
三十?/p>
)
Under the sea
海下景观
?单项填空
1
.Usually a child’s behavior is a________of his family environment.
A
?/p>
recognition
B
?/p>
reflection
C
?/p>
return
D
?/p>
record
2
?/p>
All his attention________on the computer game he was playing
?/p>
so he
even d
idn’t notice his mother enter the room.
A
?/p>
has been fixed
B
?/p>
was fixing
C
?/p>
was fixed
D
?/p>
fixed
3
?/p>
Most
young
girls
were
scared________stay
outside
after
10?0
p
?/p>

m.because they were scared________being robbed i
n the city.
A
?/p>
to
?/p>
to
B
?/p>
to
?/p>
of
C
?/p>
of
?/p>
to
D
?/p>
of
?/p>
of
4
?/p>
People have planted a great many trees in order to________wind and
sand in the desert.
A
?/p>
hold down
B
?/p>
hold up
C
?/p>
hold back
D
?/p>
hold out
5
?/p>
I was just about to jump into the river________the guide stopped me
saying “Dangerous”.
A
?/p>
while
B
?/p>

when