Directions: For this part, you are allowed thirty minutes to write a composition on the topic Global Shortage of Fresh Water. You should write at least 100 words and you should base your composition on the outline below:
1. 人们以为淡水是取之不尽的
2. 实际上淡水是非常紧缺的
3. 我们应该怎么办
[范文]Global Shortage of Fresh Water
Many people believe that the worlds supply of fresh water will never be used up. They think that fresh water comes from such a variety of sources that it is always sufficient for use. Such an opinion leads to a shocking waste of water.
As a matter of fact, the earth is short of fresh water. Furthermore, with the rapid growth of the worlds population, the rising demand for water by industry, and the serious pollution of our surroundings, the world is facing the danger of running out of fresh water. Actually, in some big cities, fresh water cannot meet the daily needs.
Therefore, to find new ways to save water is an urgent task. First, we should pass strict laws to control any waste of water. Second, scientists must work even harder to purify sea water and polluted water, and try to find substitutes to reduce the use of fresh water.
[动词的时态]be to和be going to
[特殊词精讲]be afraid doing/to do
[分词]分词作状语
[动词的语态]let 的用法
[动词不定式]用作介词的to
[动词的时态]一般现在时代替一般过去时
[动词的时态]时态一致
[动词的语态]主动形式表示被动意义
[独立主格]独立主格
[动词的时态]一般现在时代替现在完成时
[动词的时态]用现在进行时表示将来
[动词不定式]动名词与不定式
[特殊词精讲]begin(start) doing/to do
[动词的时态]延续动词与瞬间动词
[分词]分词的语态
[动词的时态]将来完成时
[动词的时态]比较一般过去时与现在完成时
[动词的时态]一般将来时
[动词的时态]一般现在时表将来
[动词的时态]时态与时间状语
[动词不定式]不定式作主语
[特殊词精讲]感官动词 + doing/to do
[动名词]短语动词
[动词的语态]短语动词的被动语态
[特殊词精讲]regret doing/to do
[分词] 分词作插入语
[动词的时态]用于现在完成时的句型
[动词不定式]动词不定式
[动词的时态]比较since和for
[动词不定式]不定式的特殊句型so as to
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