1. 句型練習 介紹 S + V...;otherwise, / or... 或 If + S + V, ... 的用法 以3個例句呈現句型用法
5個練習讓學生充分熟悉
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點選可觀看改寫句子並同時有發音
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2. 以下三個例句： 發現了嗎？ 這三個句子的意思都是 「我們必須立刻停止汙染地球，以免太晚」 卻是分別以
　We must stop polluting the Earth now;
　 otherwise, it will be too late.
　We must stop polluting the Earth now,
　or it will be too late.
　If we don’t stop polluting the Earth now,
　it will be too late.
發現了嗎？
這三個句子的意思都是
「我們必須立刻停止汙染地球，以免太晚」
卻是分別以
　　　S + V...;otherwise, / or... 或
　　　If + S + V, ... 句型所造的句子

3. S + V...; otherwise,…
We must stop polluting the earth now;
　 otherwise, it will be too late.
S + V..., or...
We must stop polluting the earth now,
　 or it will be too late.
If + S + V, ...
If we don't stop polluting the earth now,
　 it will be too late.

4. 接下來有五個句子
請練習改寫成其他句型
點選可觀看改寫後的句子
開始練習吧！

5. We must change our attitude,
　or there will be an ecological disaster.
2)　If we don't save the plants and animals,
　 our grandchildren will blame us.
We must change our attitude; otherwise,
　 there will be an ecological disaster.
If we don't change our attitude,
　 there will be an ecological disaster.
We need to save the plants and animals,
　or our grandchildren will blame us.
We need to save the plants and animals;
　 otherwise, our grandchildren will blame us.

6. 3) We must use energy more carefully,
otherwise, pollution will continue to increase.
If we don't respect the our mother Earth,
it will die.
5) We must think about the future,
　or we won't have one.
We must use energy more carefully,
or pollution will continue to increase.
If we don't use energy more carefully,
　pollution will continue to increase.
We must respect our mother Earth,
or it will die.
We must respect our mother Earth;
　otherwise, it will die.
 We must think about the future; otherwise, we won't have one.
 If we don't think about the future,
　we won't have one.

7. 接著
請自己以此句型造句
並與大家分享吧！