教材是死的，不能随意更改。但教法是活的，课怎么上全凭教师的智慧和才干。下面这篇是小编为大家整理的高三英语教案重点难点：Lesson 14，希望大家喜欢!

1. Today farming employs more people than any other types of work. 今天从事农业的人要多于从事任何其它工种的人。type n. 种类 type of 后面的名词常常用单数。e.g. John is a type of schoolboy. 约翰是学生的一个典范。The engineer invented a new type of machine. 这位工程师发明了一种新型机器。types of后面的名词可用复数，也可用单数，做主语时谓语动词用复数形式。e.g. Several types of cars are on show in the exhibition. 好几种新型汽车在展览会上展出。 What types of crops are planted in this area? 这个地区种植什么农作物?

2. For one thing two thirds of the earth’s surface is water, although this does provide a lot of food in the form of fish. 首先，地球表面的三分之二是水，尽管这部分以鱼的形式提供了许多食品。1). for one thing 表示“首先”，用来列举理由，当需要继续列举时，可用for another表示“其次”。 e.g. Sorry I can’t go to the cinema with you this afternoon. For one thing, I have seen it; for another, I have an important meeting to attend. 对不起，下午我不能和你一块儿去看电影。一则我已看过这部电影，再则我要去开一个重要的会议。 I don’t want to buy the dictionary. For one thing, it is too expensive; for another, I don’t have enough money with me at present. 我不买这本字典。首先，它太贵了;其次，我现在也没有足够的钱。 2). in the form of 以形式;The sun gives us energy in the form of light and heat. 太阳以光和热的形式给予我们能量。The cakes are all in the form of stars. 这些蛋糕都是星星形状的。

3. And this area is becoming smaller day by day. 面积在渐渐缩小。day by day一天天地;(有变化)day after day一天天地;(重复同一动作)step by step逐步地;one by one 一个一个地;twos by twos 两个两个地;group by group 一批一批地;e.g. The boy is growing taller day by day. 那个男孩一天天长高了。Day after day he does the same job. 日复一日，他做着相同的工作。

4. That is why the Chinese people are making great efforts to protect their farmland and increase agricultural production. 这就是为什么中国人要下大力气来保护耕地，增加农业生产的原因。effort (可数名词.) 努力;努力的尝试;make efforts = make an effort 做出努力;尽力;make every effort 尽一切努力;spare no effort 不遗余力

5. The FAO (Food and Agriculture Organization of the United Nations) has worked out that up to 30% of food is lost in storage. 联合国的粮食农业组织统计出多达30% 的粮食在储存中损失掉了。1). up to “多达……”;e.g. Up to 40% of the water in our city has been polluted. 我们市多达40%的水已被污染了。 They have completed up to 85 percent of the project so far. 至今为止他们已经完成了这项工程的百分之八十五。 “直到……”;e.g. The little baby can count from one up to one hundred. 那个婴儿能够从一数到一百。 “胜任……”;e.g. He is not up to his job. 他不胜任他的工作。 “视为……的职责”，这时通常用 be up to sb. to do sth.这个句型。e.g. It is up to you to decide who should go first. 应该由你来决定谁先走。2). work out估算出;算出;e.g. We worked out the cost and found that it was cheaper than the market price. 我们算出了费用，发现它比市场价格便宜。耗尽;用尽;The coal mine is now worked out. 那个煤矿已经枯竭了。