【正文】 【知識點思維導圖】 課堂練習 一、用所給單詞的適當形式填空 1. I want to buy two bottles of _______ (milk) in the shop. 2. Three _______ (quarter) of the Earth is covered with water. 3. We can see a lot of _______ (pollute) everywhere. 4. I saw many _______ (animal) in the zoo yesterday. 5. There _______ (be) two books and a pencil on the desk. milk quarters pollution animals are 6. We can get a lot of _______ (energy) from food. 7. There are many mountains and _______ (field) on Earth. 8. It is about 10 ___________ (kilometre) from my home to the hospital. 9. There _______ (be) four ___________ (Japanese) and two ___________ (German) in the group. 10. There _______(be) an apple and two pears on the table. energy fields kilometres are Japanese Germans is 二、選擇填空 ( )1. — What39。若表示不可數(shù)名詞的數(shù)量時，一般用“數(shù)詞 +量詞 +of+不可數(shù)名詞”，如 :a piece of news 一則新聞。s very fun! Turn off the water! Do you know that some toilets can waste twenty to forty liters of water an hour? In a year, that would fill a small river! In environment clubs, students mend those broken toilets. We love our environment. Let39。t solve these difficult ________ (problem). 5. It is ________ (importance) for us to protect the Earth. throwing to listen pollute problems important 6. The river ________ (provide) the town with fresh water. 7. We must ________ (protection) ourselves anytime and anywhere. 8. You can ________ (burn) some wood to stay warm. 9. Mr Li is the ________ (own) of that new house. 10. I just feel that I39。s very dangerous __________ children to cross the busy street. of for 課堂練習 一、用所給單詞的適當形式填空 1. We must stop ________ (throw) away rubbish here and there. 2. It39。 【應用】 （ 1） It39。It39。 It39。 It39。 (2) “ It is +adj.+of sb.+to do sth.”句型意為“某人（做某事）怎么樣”，該句型中的形容詞是用來描述不定式行為者的性格、品質(zhì)的，如：kind， good， nice， right， wrong， clever，polite， foolish等。 It is useful for you to learn the puter. 對你來說，學習計算機是有用的。 【用法】 It is+adj.+for sb.+to do 意為“對某人來說，做某事是怎么樣的”，其中 it為形式主語，真正的主語是 to do sth.。s stop to have a rest. 我們都累了，停下來休息一會兒吧。 I have to stop to wash dishes, because my mum goes ，因為我媽媽出去了。s too late. 太晚了，你必須停止唱歌。 【用法】 stop doing sth. 意為“停止做某事”，即停下手頭正在做的事情。 for ( )14. — Do you know how many people live Earth? — Sorry, I am not sure. A. on B. in C. with A A ( )15. — Sam, don39。 with B. provides。s on Frank39。s house was burning. It was very dangerous. A. destroying B. producing flames and heat C. giving out energy ( )8. — If you have problems in study, please e to me. — Thank you very much, Mr Li. A. interest B. ideas C. trouble B C ii. 根據(jù)句子意思，從下面每小題的 A、 B、 C選項中選出恰當?shù)脑~語完成句子。 ( )1. — Bill says the pollution in your hometown is very serious. Is that true? — Yes, he is right. The air in the sky is polluted and it kills lots of birds. A. makes … die B. makes … healthy C. makes … interesting A ( )2. — What can we do to help save the Earth? — We should protect the environment from now on, or the Earth will be in danger. A. keep … safe B. keep … dirty C. keep … fresh A ( )3. — Why is it a good idea to call on more people to take the bus to work instead of driving cars? — Because the cars give out lots of exhaust gas (廢氣 ) and it pollutes the air. A. makes … dirty B. makes … fresh C. makes … new ( )4. — Bruce, long time no see. You look happy in your new school. — Yes. My school gives me lots of chances to show myself. A. helps … with B. provides … with C. throws … away A B ( )5. — Can I hand in my homework this afternoon? — No, you can39。 His theory is very difficult, but a few people understand it. 他的理論很深奧，但是有些人懂。 Who owns this house? 這房子歸誰所有？ 應用 I want to see the ________ (own) of the pany. owner【 要點 8】 few 【思維導圖】 舉例 Few of us have been to Hong Kong. 我們當中很少人去過香港。 I am the owner of that car. =That car is mine. =That car belongs to me. 我是那輛車的主人。 (1)Do you know the ___________ (important) of education? (2)It is __________ (importance) to study the history of China. 應用 importance important 【 要點 7】 own 【思維導圖】 舉例 He bought a new house by using his own 。s important for us to learn English well. 對我們來說學好英語很重要。 couldn39。 don39。t。ll have to borrow some money. 如果我要買那套房子 , 我不得不借些錢。 We must leave at once. 我們必須馬上離開。t / don39。 舉例 — Must I clean the dining room at once? 我必須馬上打掃飯廳嗎？ — Yes, you must. 是的，你必須。 You mustn39。 He must be ill. He looks so pale. 他肯定是病了。 應用 You should exercise more to keep _____________(energy). energetic 【 要點 5】 must 【思維導圖】 舉例 We must stop polluting the river. 我們必須停止污染河流。 He is always full of energy. 他總是充滿活力。 He is an energetic boy. He enjoys sports. 他是一個有活力的男孩。 It39。 Smoking will