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二、从方框中选择合适的短语，并用其适当形式填空。
put...in... add...to... take away from turn into speed up
1. When you heat water, it will
2. Salt can
3. Please
4. The cold air
5.
put...in... add...to... take away from turn into speed up
1. When you heat water, it will
turn into
steam.2. Salt can
speed up
the melting of ice.3. Please
add
the sugar to
the tea.4. The cold air
takes
heat away from
the cream mixture.5.
Put
the chicken in
the pot and cook for 10 minutes.答案
1. turn into 2. speed up 3. add to 4. takes away from 5. Put in
三、句型变换。
1. Let’s make some ice cream.（改为同义句）
2. Shall we wash the carrots first?（作肯定回答）
3. I’m making a fruit salad.（改为一般疑问句）
4. The ice is melting.（对画线部分提问）
5. We need some sugar and cream.（对画线部分提问）
1. Let’s make some ice cream.（改为同义句）
Shall
we
make some ice cream?2. Shall we wash the carrots first?（作肯定回答）
Sure/Good idea/OK
!3. I’m making a fruit salad.（改为一般疑问句）
Are
you
making a fruit salad?4. The ice is melting.（对画线部分提问）
What
is
the ice doing
?5. We need some sugar and cream.（对画线部分提问）
What
do
you need
?答案
1. Shall we 2. Sure/Good idea/OK 3. Are you 4. What is doing 5. What do need
1. (
—Good idea!
A.Shall
B.Let
C.Why
A
) — Shall
we make some lemon tea?—Good idea!
A.Shall
B.Let
C.Why
答案
1. A
2. (
A.am
B.is
C.are
B
) Steam is
a gas.A.am
B.is
C.are
答案
2. B
3. (
A.ice
B.steam
C.liquid
A
) When water freezes, it becomes ice
.A.ice
B.steam
C.liquid
答案
3. A
