1. We should not
2. Peter
3. We should use
4. You can't
5. We must save
drive
so much because there is not much oil
.2. Peter
collected
some bottles and reused
them to make clothes
.3. We should use
paper
bags and glass
bottles.4. You can't
waste too much
time and money on games.5. We must save
water
and energy
.答案：1. drive, oil 2. collected, reused, clothes 3. paper, glass 4. waste too much 5. water, energy
八、根据上下文和首字母提示完成短文。
Trees are
Trees are
useful
to birds and animals. Trees give them food and houses
. Trees are useful to us. They give us wood
. We use wood to make houses, paper and many other things. Trees give us fruit. Trees give us oxygen (氧气). They help keep the air
clean. They protect
us from sandstorms (沙尘暴) and floods (洪水). But we cut
down too many
trees. Many birds and animals lose their homes. Our Earth becomes hot
and dirty. We should save
trees and plant
more trees.答案：useful, houses, wood, air, protect, cut, many, hot, save, plant
九、按要求写句子。
1. They use too many plastic bags. (用 should not 改写句子)
2. No littering. (改为同义句)
3. We use the plastic again. We can use it to make a toy. (合并为一句)
4. We can use coal and oil to produce (制造) energy. (用 come from 改写句子)
5. can, reuse, glass, how, we, the, bottle (?) (连词成句)
1. They use too many plastic bags. (用 should not 改写句子)
They should not use too many plastic bags.
2. No littering. (改为同义句)
Don't litter./You shouldn't litter.
3. We use the plastic again. We can use it to make a toy. (合并为一句)
We reuse the plastic to make a toy.
4. We can use coal and oil to produce (制造) energy. (用 come from 改写句子)
Energy comes from coal and oil.
5. can, reuse, glass, how, we, the, bottle (?) (连词成句)
How can we reuse the glass bottle?
答案：1. They should not use too many plastic bags. 2. Don't litter./You shouldn't litter. 3. We reuse the plastic to make a toy. 4. Energy comes from coal and oil. 5. How can we reuse the glass bottle?
(
(
(
(
(
F
) 1. All the places on Earth are very hot.(
F
) 2. Plants don't need light and water.(
T
) 3. The Earth can provide us with air, water and food.(
T
) 4. The Earth is our home.(
F
) 5. We should put our rubbish into the sea.答案：1. F 2. F 3. T 4. T 5. F