(
课件网) 1. Earth [ θ] n. the world; the planet that we live on. on Earth 在地球上 The moon goes round the earth. 月亮绕着地球转。 2. About 70% of the Earth is covered by water. (29) 地球上70%被水覆盖。 百分数用法： “百分数+of+n”作主语时，谓语动词的单复数要与of后面名词 的单复数保持一致。 e.g: 90% of the students are good. 3. part [pɑ t] n. some but not all of a thing 部分 (1) 常指一个整体中的某一“部分”、“局部” (2) 为可数名词，用于单数形式时，可不用不定冠词修饰。 Translate: 大楼的一部分毁于火灾。 _____ Learn new words. Part of the building was destroyed in the fire. 4. land [l nd] n. 陆地，与sea、sky相对，都属于不可数名词。 on the land 在地上 land偏向于地理概念，是块地方就是land。 Fish cannot live on land . 5. field [fi ld] n. a field is an area of grass in a park or on a farm.田地；田野 in the field field特指可以耕种和种植农作物的土地。 The peasants are working in the fields. 6. ground [ɡra nd] n. the solid surface of the earth 地面 on the ground 在地面上 ground 主要指大地、陆地的表面，也指土壤、场地、泥土。 The little boy was lying on the ground . 7. pollution [p lu n] n. the process of making air, water, soil, etc. 污染 air pollution 空气污染 environmental pollution环境污染 water pollution 水污染 pollute [p lu t] v. 污染 = make sth. dirty Learn new words. 8. protect [pr tekt] v. 保护 protection n. 防卫 短语：protect … from/against … 保护…免受…（伤害） 拓展：prevent/stop/keep/ … from doing … 阻止某人做某事 Practice: We should _____ the Earth _____ being _____. 我们应该保护地球免受污染。 Learn new words. protect from polluted Activity Write the correct forms of the words. 1. protect (名词) _____ 2. provide (近义词) _____ 3. pollution (动词) _____ 4. part (复数) _____ 5. land (近义词) _____ 6. large (近义词) _____ 7. important (名词) _____ protection offer pollute parts field/ground big importance 12. The Earth provides us with air, water and food. provide [pr va d] v. 提供 短语：provide sth. for sb. = Provide sb. with sth. 为某人提供某物 拓展：offer sb. sth. = offer sth. to sb. 提供某人某物 Practice: (1) The waiter provided delicious food _____ us. (2) I hope you can provide me _____ more information. Learn new words. for with 13. quarter: 可数名词， “一刻钟，四分之一” one quarter 四分之一 three quarters：四分之三 分数表达： （1）分子用基数词，分母用序数词； （2）分子大于1时，分母用复数形式。 e.g: one sixth: 六分之一 two thirds: 三分之二 Learn new words. 14. We burn things to make energy. burn [b n] 及物动词，燃烧，过去式：burnt。 Energy [ en d i] n. 能量，能源 短语：make energy 制造能量，获取能量 Translate: (1) 我昨天烧伤了手指。_____ (2) 人们利用水、风和太阳来获取能量。 _____ Learn new words. I burnt my finger yesterday. People use water, wind and sun to make energy. 6. We put our rubbish into the sea and under the ground. put … into … 把…倒入… 拓展：put up 举起 put off 推迟 put on 穿上 Practice: (1) 记得把你的食物放进餐盒里。 _____ (2) Put your hands ____ and si ... ...
