全文 The whole set, with pinyin and English
一、连词成句 Put the words in order
刷牙的时候，要关上水龙头。
shuā yá de shí hòu yào guān shàng shuǐ lóng tóu
Turn off the tap while you brush your teeth.
离开课室以前，我们把电灯关掉。
lí kāi kè shì yǐ qián wǒ men bǎ diàn dēng guān diào
Before leaving the classroom, we switch off the lights.
妈妈去超市的时候，总是自己带购物袋。
mā ma qù chāo shì de shí hòu zǒng shì zì jǐ dài gòu wù dài
When Mum goes to the supermarket, she always brings her own shopping bag.
我们把旧报纸放进回收箱里。
wǒ men bǎ jiù bào zhǐ fàng jìn huí shōu xiāng lǐ
We put old newspapers into the recycling bin.
为了保护地球，我们要少用塑料袋。
wèi le bǎo hù dì qiú wǒ men yào shǎo yòng sù liào dài
To protect the Earth, we should use fewer plastic bags.
爸爸每天骑脚车去上班，不开车。
bà ba měi tiān qí jiǎo chē qù shàng bān bù kāi chē
Dad cycles to work every day instead of driving.
同学们在学校的花园里种了很多树。
tóng xué men zài xué xiào de huā yuán lǐ zhòng le hěn duō shù
The pupils planted many trees in the school garden.
用过的塑料瓶可以拿来做笔筒。
yòng guò de sù liào píng kě yǐ ná lái zuò bǐ tǒng
Used plastic bottles can be made into pencil holders.
我们不可以把垃圾丢进河里。
wǒ men bù kě yǐ bǎ lā jī diū jìn hé lǐ
We must not throw rubbish into the river.
天气热的时候，我用电风扇，不开冷气。
tiān qì rè de shí hòu wǒ yòng diàn fēng shàn bù kāi lěng qì
When it is hot, I use a fan instead of turning on the air-con.
洗菜的水可以用来浇花。
xǐ cài de shuǐ kě yǐ yòng lái jiāo huā
The water used to wash vegetables can be used to water the plants.
二、完成句子 Fill in the blank
刷牙的时候，要关上水龙头，不要浪费水。
shuā yá de shí hòu yào guān shàng shuǐ lóng tóu bú yào làng fèi shuǐ
While brushing your teeth, turn off the tap and don't waste water.
💡 Turning off (关上) the tap saves water.
我把用过的纸放进回收箱。
wǒ bǎ yòng guò de zhǐ fàng jìn huí shōu xiāng
I put used paper into the recycling bin.
💡 Used paper goes into the recycling bin (回收箱).
离开房间以前，要记得关掉电灯。
lí kāi fáng jiān yǐ qián yào jì de guān diào diàn dēng
Before leaving a room, remember to switch off the light.
💡 Switching off (关掉) lights we don't need saves electricity.
去超市买东西，我们自己带购物袋。
qù chāo shì mǎi dōng xi wǒ men zì jǐ dài gòu wù dài
When we shop at the supermarket, we bring our own shopping bags.
💡 Bringing a shopping bag (购物袋) means using fewer plastic bags.
为了保护环境，我们要少用一次性的筷子。
wèi le bǎo hù huán jìng wǒ men yào shǎo yòng yí cì xìng de kuài zi
To protect the environment, we should use fewer disposable chopsticks.
💡 为了 (in order to) gives the goal; then we say what we do for it.
树可以给我们新鲜的空气。
shù kě yǐ gěi wǒ men xīn xiān de kōng qì
Trees give us fresh air.
💡 Trees make the air (空气) fresh.
河里有很多垃圾，鱼儿都生病了。
hé lǐ yǒu hěn duō lā jī yú er dōu shēng bìng le
There is a lot of rubbish in the river, and the fish have fallen ill.
💡 Rubbish in the water makes the fish ill (生病).
用过的瓶子不要丢掉，可以回收。
yòng guò de píng zi bú yào diū diào kě yǐ huí shōu
Don't throw used bottles away; they can be recycled.
💡 Used bottles can be recycled (回收).
天气不热，我们可以打开窗户，不用开冷气。
tiān qì bú rè wǒ men kě yǐ dǎ kāi chuāng hù bú yòng kāi lěng qì
It isn't hot, so we can open the windows and don't need to turn on the air-con.
💡 Open windows instead of air-con (冷气) saves electricity.
我们要节约用水，不要浪费。
wǒ men yào jié yuē yòng shuǐ bú yào làng fèi
We should save water and not waste it.
💡 节约用水 means using water carefully; 浪费 is the opposite.
公园里的花很漂亮，我们不可以摘。
gōng yuán lǐ de huā hěn piào liang wǒ men bù kě yǐ zhāi
The flowers in the park are pretty; we must not pick them.
💡 Picking (摘) the flowers spoils the park for everyone.
三、改病句 Correct the sentence
病句：刷牙的时候，我们要一直开着水龙头。
shuā yá de shí hòu wǒ men yào yì zhí kāi zhe shuǐ lóng tóu
While brushing teeth, we should leave the tap running all the time.
改正：刷牙的时候，我们要关上水龙头。
shuā yá de shí hòu wǒ men yào guān shàng shuǐ lóng tóu
While brushing teeth, we should turn off the tap.
💡 Turn the tap off while you brush: leaving it running wastes water.
病句：我们把回收箱放进旧报纸里。
wǒ men bǎ huí shōu xiāng fàng jìn jiù bào zhǐ lǐ
We put the recycling bin into the old newspapers.
改正：我们把旧报纸放进回收箱里。
wǒ men bǎ jiù bào zhǐ fàng jìn huí shōu xiāng lǐ
We put old newspapers into the recycling bin.
💡 The newspapers go into the bin: 把旧报纸放进回收箱里.
病句：为了保护地球，所以我们要少用塑料袋。
wèi le bǎo hù dì qiú suǒ yǐ wǒ men yào shǎo yòng sù liào dài
In order to protect the Earth, so we should use fewer plastic bags.
改正：为了保护地球，我们要少用塑料袋。
wèi le bǎo hù dì qiú wǒ men yào shǎo yòng sù liào dài
To protect the Earth, we should use fewer plastic bags.
💡 为了 doesn't pair with 所以; and protecting the Earth means fewer plastic bags, not more.
病句：离开课室以前，我们把电灯打开。
lí kāi kè shì yǐ qián wǒ men bǎ diàn dēng dǎ kāi
Before leaving the classroom, we switch the lights on.
改正：离开课室以前，我们把电灯关掉。
lí kāi kè shì yǐ qián wǒ men bǎ diàn dēng guān diào
Before leaving the classroom, we switch the lights off.
💡 Lights go off (关掉) when we leave.
病句：我每天节约很多水，真浪费。
wǒ měi tiān jié yuē hěn duō shuǐ zhēn làng fèi
I save a lot of water every day, which is really wasteful.
改正：我每天节约很多水，真不错。
wǒ měi tiān jié yuē hěn duō shuǐ zhēn bú cuò
I save a lot of water every day, which is really good.
💡 Saving water is good (不错), not wasteful.
病句：大家一起种树了很多。
dà jiā yì qǐ zhòng shù le hěn duō
Everyone planted trees a lot together (word order wrong).
改正：大家一起种了很多树。
dà jiā yì qǐ zhòng le hěn duō shù
Everyone planted many trees together.
💡 How many goes before the thing: 种了很多树.
病句：河里的垃圾越来越少，鱼儿都生病了。
hé lǐ de lā jī yuè lái yuè shǎo yú er dōu shēng bìng le
There is less and less rubbish in the river, and the fish have all fallen ill.
改正：河里的垃圾越来越多，鱼儿都生病了。
hé lǐ de lā jī yuè lái yuè duō yú er dōu shēng bìng le
There is more and more rubbish in the river, and the fish have all fallen ill.
💡 More rubbish (越来越多) is what makes the fish ill.
四、扩句 Make the sentence longer
我们种树。
wǒ men zhòng shù
We plant trees.
在哪里？：我们在公园里种树。
wǒ men zài gōng yuán lǐ zhòng shù
We plant trees in the park.
什么时候？：星期六早上，我们在公园里种树。
xīng qī liù zǎo shàng wǒ men zài gōng yuán lǐ zhòng shù
On Saturday morning, we plant trees in the park.
谁？种了多少？：星期六早上，我们一家人在公园里种了三棵小树。
xīng qī liù zǎo shàng wǒ men yì jiā rén zài gōng yuán lǐ zhòng le sān kē xiǎo shù
On Saturday morning, our whole family planted three little trees in the park.
妈妈带购物袋。
mā ma dài gòu wù dài
Mum brings a shopping bag.
去哪里？：妈妈去超市带购物袋。
mā ma qù chāo shì dài gòu wù dài
Mum brings a shopping bag to the supermarket.
什么时候？多常？：妈妈去超市的时候，总是带着自己的购物袋。
mā ma qù chāo shì de shí hòu zǒng shì dài zhe zì jǐ de gòu wù dài
When Mum goes to the supermarket, she always brings her own shopping bag.
为什么？：为了少用塑料袋，妈妈去超市的时候，总是带着自己的购物袋。
wèi le shǎo yòng sù liào dài mā ma qù chāo shì de shí hòu zǒng shì dài zhe zì jǐ de gòu wù dài
To use fewer plastic bags, Mum always brings her own shopping bag to the supermarket.
五、造句 Make a sentence
为了 wèi le · in order to
为了保护地球，我们要节约用水。
wèi le bǎo hù dì qiú wǒ men yào jié yuē yòng shuǐ
To protect the Earth, we should save water.
为了身体健康，我每天跑步。
wèi le shēn tǐ jiàn kāng wǒ měi tiān pǎo bù
To stay healthy, I run every day.
节约 jié yuē · to save; not waste
刷牙的时候关上水龙头，可以节约用水。
shuā yá de shí hòu guān shàng shuǐ lóng tóu kě yǐ jié yuē yòng shuǐ
Turning off the tap while brushing your teeth saves water.
离开房间的时候关掉电灯，可以节约用电。
lí kāi fáng jiān de shí hòu guān diào diàn dēng kě yǐ jié yuē yòng diàn
Switching off the light when you leave a room saves electricity.
回收 huí shōu · to recycle
我们把旧报纸拿去回收。
wǒ men bǎ jiù bào zhǐ ná qù huí shōu
We take old newspapers to be recycled.
学校每个星期都回收塑料瓶。
xué xiào měi gè xīng qī dōu huí shōu sù liào píng
The school recycles plastic bottles every week.
六、仿写 Write on the pattern
例句：为了保护地球，我们要少用塑料袋。
wèi le bǎo hù dì qiú wǒ men yào shǎo yòng sù liào dài
To protect the Earth, we should use fewer plastic bags.
为了……，我们要……。
为了节约用水，我们要关好水龙头。
wèi le jié yuē yòng shuǐ wǒ men yào guān hǎo shuǐ lóng tóu
To save water, we should turn the taps off properly.
为了让空气更新鲜，我们要多种树。
wèi le ràng kōng qì gēng xīn xiān wǒ men yào duō zhòng shù
To make the air fresher, we should plant more trees.
例句：我们把旧报纸放进回收箱里。
wǒ men bǎ jiù bào zhǐ fàng jìn huí shōu xiāng lǐ
We put old newspapers into the recycling bin.
……把……放进……里。
弟弟把塑料瓶放进回收箱里。
dì di bǎ sù liào píng fàng jìn huí shōu xiāng lǐ
My little brother puts the plastic bottles into the recycling bin.
我把玩具放进盒子里。
wǒ bǎ wán jù fàng jìn hé zi lǐ
I put my toys into the box.