Unit 4 The water journey Lesson 1 习题（含答案）

Unit
4
The
Water
Journey
Lesson
1习题
一、句型转换。
We
should
plant
more
trees
to
keep
the
air
clean.
（改为一般疑问句）
plant
more
trees
to
keep
the
air
clean
You
should
turn
off
the
lights
to
save
energy.
（改为一般疑问句）
turn
off
the
lights
to
save
energy
3.
You
should
cut
more
trees.（改为否定句）
You
more
trees.
4.
We
should
use
many
plastic
bags
and
plastic
bottles.（改为否定句）
We
use
many
plastic
bags
and
plastic
bottles.
5.
We
should
save
and
reuse
water.（改为疑问句）
save
and
reuse
water.
二、单项选择。
1.
---
What
_____ we
do
to
save
energy
---
We
should
not
drive
so
much.
A. keep B. should C. makes D. cans
2. ---
How
should
we
save
plastic
bags
and
bottles
---
We
should
more
paper
bags
and
glass
bottles.
A. use
B. uses C. can D. keeps
3.
We
wood
make
tables
chairs
and
many
other
things.
A. use;
and B. uses;
to C. use;
to D. uses;
for
4.
We
cut
too
many
trees
because
trees
help
us
keep
the
air
clean.

A. should B. should
not C. can D.
keep
5.
There
is
not
much
coal
or
oil
on
,
so
we
save
energy.
A. earth;
should B. Earth;
should
not
C. Earth;
should D. earth;
should
not
答案
一、句型转换。
1.
Should,
we
2.
Should,
you
3.
Should,
not,
eat
4.
should
not
5.
Should,
we
二、单项选择。
1.
B
2.
A
3.
C
4.
B
5.
C