1、7A UINT 3 protect the earthThe Earth is a beautiful place. There are forests and rivers, mountains and fields. Some places are very hot, and some are very cold. Places on EarthThere are many different plants. Some are large. Some are small. All plants need light and water. There are different animal

2、s on Earth too. Some live on the land. Some fly in the sky. Some live under the water Plants and animalsThere are also many people like you and me on Earth. The Earth provides us with air, water and food. It is our home People on EarthToday, there is a lot of pollution. We burn things to make energy

3、. This pollutes the air. We put our rubbish into the sea and under the ground. This pollutes the Earth and kills animals and plants. PollutionWe must stop doing these things. It is important for us to protect the Earth for our futureProtect the Earth1.Find the key phrases from reading.保護地球_ 在陸地上_在天空

4、中_ 在水下_大量_ 制造能源_把倒入_ 在地下_停止做_ 為提供_Translate the following sentences into English所有的植物都需要光和水。 _ 地球上還生活著不同的動物。 _ 地球為我們提供空氣、水和食物。 _ 我們把垃圾倒入大海和地下。 _ 我們必須停止污染環境。 _ 為了我們的將來，保護地球很重要。_ 寫出下列名詞的復數形式1. boy _ 2. people _ 3. leaf_ 4. zoo _ 5. tomato _ 6. foot _7. eye _ 8. dress_ 9.wife_10. match _ 11. library _

5、12. family_ 13. wish_ 14. photo _ 15.German_17. Chinese _ 18. day _ 19. dictionary _ 20. kilo _Unit 4 seasonsThe four seasonsSpring In spring, the weather starts to get warm. The wind blows gently. It often rains. Plants start to grow. Everything turns green. It is exciting to take a trip in spring.

6、 Summer The weather is hot in summer. The Sun shines brightly. Many people like to go to the beach and swim in the sea. It is nice to eat ice cream in the hot weather.Autumn In autumn, everything changes. Leaves turn brown, red or yellow and start falling from the trees. It is nice to go on a picnic

7、 at this time of year because the weather is cool and dry. Winter Winter is often cold and snowy. Children love winter because they love to play in the snow. It is interesting to make snowmen. People usually spend time with their relatives during the Spring Festival. 寫出下列形容詞的反義詞：1good/nice _ 2 big/l

8、arge _ 3 tall/long _ 4 high _ 5 heavy _ 6 fat/thick _7 young/new _ 8 beautiful _ 9 right _ 寫出下列名詞的形容詞：10 wind - _ 11 rain - _ 12 snow - _ 13 sun - _ 14 fog - _ 15 cloud - _形容詞是指用來修飾_或 _，表示人或事物的_. 形容詞可以放在名詞和代詞的 _ 修飾人和事物。我們可以在 _ 后加-y 或 ly變成 _What festivals do we have in each season? What do we usually

9、 do or eat at each festival?We have joy we have fun we have seasons in the Sun. Lets protect our earth. Enjoy our life in every season!Trees are our best friends on Earth. They(1) produce oxygen for us to breathe, and they(2) take in waste gas from cars and other(3) harmful gases from the air. Trees

10、 also make our lives more comfortable and convenient. Look around and you will find that a lot of products(4) are made of wood.However, trees are now in danger. People cut down millions of trees every year. Can you imagine the world without trees? (6) In fact, if we dont start protecting them from n

11、ow on, well soon lose our friends, the treesWater talksDora was in the bathroom. The tap was on. Turn that tap off, said an angry voice. Youre wasting water. Dora looked around, but there was no one there. Who are you? Im a drop of water. Do you know where I come from? From the tap? asked Dora. A fe

12、w days ago, I was in a cloud, said the drop of water. Then I dropped into a river and ran into a reservoir. Then it was time for people to clean me. Clean you? Dora asked. Yes. I was dirty. They cleaned me and added some chemicals to me. Then I travelled through the pipes under the streets and now I

13、m here.” Dora asked, So is this the end of your journey?No. People will make me clean again. Ill go into a river and then into the sea again. Again? Yes. My journey starts there. Remember not to waste or pollute me. Im valuable. Dora turned the tap off and came out of the bathroom.Read the story and answer the following questions.1. Where did the drop of water talk with Dora? 2. Where did people clean the water? 3. What did people add to water? 4. Is the tap the end of this drop of waters journey?5. Where does the drop of waters journey start? 6.