5. Environmental Protection
Today the quality of our natural environment has become an important issue. The world population is rising so quickly that the world has become too crowded. We are using up our natural resources and at the same time polluting our environment with dangerous chemicals. If we continue to do this, life on earth cannot survive. Concerned people have made some progress in environmental protection. Governments of many countries have established laws to protect the air, forests and sea resources and to stop environmental pollution. Still more measures should be taken to solve environmental problems. People should be further educated to recognize the importance of the problems, to use modern methods of birth control, to conserve our natural resources and recycle our products. We are sure that we can have a better and cleaner place in the future.
牛津实用英语语法:229 间接引语中的条件句
牛津实用英语语法:251 某些特定的名词之后的不定式
牛津实用英语语法:条件句
牛津实用英语语法:224 if从句中的will/would和should
牛津实用英语语法:231 should/would think+that从句或so/not
牛津实用英语语法:240 不定式作主语
牛津实用英语语法:294 care和like
牛津实用英语语法:275 go,come,spend,waste,be busy
牛津实用英语语法:253 位于句首或句末的不定式短语
牛津实用英语语法:295 care,like,love,hate,prefer
牛津实用英语语法:248 分裂不定式
牛津实用英语语法:243 动词或动词+宾语之后的不定式
牛津实用英语语法:209 一般将来时的用法
牛津实用英语语法:254 不定式的进行式
牛津实用英语语法:214 将来进行时与will +动词原形的比较
牛津实用英语语法:265 动名词的被动式
牛津实用英语语法:237 should的其他用法
牛津实用英语语法:241 不定式作宾语和作表语
牛津实用英语语法:219 条件现在时
牛津实用英语语法:255 不定式的完成式
牛津实用英语语法:281 祈使句表示命令
牛津实用英语语法:234 shall用于第二、第三人称
牛津实用英语语法:287 劝告的形式
牛津实用英语语法:276 代替主句的现在分词短语
牛津实用英语语法:will/would,shall/
牛津实用英语语法:230 用will,would表示习惯
牛津实用英语语法:208 第一人称will和shall
牛津实用英语语法:222 条件句类型2
牛津实用英语语法:274 catch,find,leave+宾语+现在分词
牛津实用英语语法:232 would 表示过去的意图
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