Life is a contest! Who will win? A bluebird and sparrow both compete for space to build their nests. A fast-growing maple tree and slower-growing dogwood compete for the sunlight they both need. Oil competes with coal and nuclear power as an energy source for electric power plants!
There is a problem. There is a limited amount of space for birds, sunlight for trees, and energy for people! If we do not cut back on our uses of some of our resources, someday they will be gone!
How can we use energy today and know we will have enough to go around in the future? We can choose alternate, or replacement, energy resources. It takes the earth millions of years to create coal, oil, and gas. They are nonrenewable resources.
Solar energy, wind energy and water energy are renewable resources. It takes the earth millions of years to create coal, oil, and gas. They are nonrenewable resources.
Solar energy, wind energy and water energy are renewable. What other ways can we conserve our sources? How can we make sure there is always enough to go around?
Useful words and expressions:
1. bluebird 蓝知更鸟
2. sparrow 麻雀
3. dogwood 山茱萸
4. power plant 发电厂,发电站
5. alternate 替换物
6. nonrenewable resources 不可再生资源
7. conserve 保存,保藏
面试口语开场对话
英语阅读理解专项训练
面试口语:离职原因
关系代词who, whom, whose的用法
关于口语学习的经验
英语中“道歉”的种种表达
双语情景对话:买礼物
面试口语:自我评价
双语情景对话:买直达火车票
双语情景对话:你要戒烟了
面试口语:姓名和年龄的问法。
面试口语:关于家眷
双语情景对话:中秋团圆
中考英语阅读理解训练
英语情景对话:老友重逢
英文情景对话:预约
面试口语:关于教育背景
英语表达“睡眠不好”
用英语表达不清楚时候可以这样说
双语情景对话:购买看电影的学生票
在加油站的英文情景对话
面试口语:自我介绍
英语中“我不知道”的种种表达
面试口语:关于住址和籍贯
四级英语语法:副词性连接词
双语情景对话:买手机
四级英语语法:连词
用英语表达“交流心得”
英文情景对话:在旅馆
面试口语:目前的工作
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