14-15学年度第二学期高一英语晒学案-远安县第一高级中学

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14-15学年度第二学期高一英语晒学案---Book 4 Unit 2 Working the land 文本研读

作者：来源：课程管理部发布时间：2015年08月14日

编写人：曾祥顺审核人：胡丹丹编写时间： 2015-5-10

班级：组别：姓名：等级：

【Study Aims】1. To know something about chemical and organic farming.

2. To improve reading ability.

【Key Point】 How to get information efficiently and effectively.

【Difficult Point】 To learn some important grammar structures.

【Background Knowledge】Read the following expressions before class and try to understand them.

1) over the past half century 过去半个世纪来

2) cause damage to… 对…产生损坏

3) build up 逐渐增强

4) over time 经过一段时间

5) lead to 导致

6) in addition 另外

7) turn to (doing) sth 转而做某事

8) focus on sth 集中…于

9) keep…free of sth 使…免受；使…不含

10) every few years 每隔几年

11) prevent sb from doing sth 阻止某人做某事

12) avoid doing sth 避免做某事

【Learning Procedures】

StepⅠWarming up

What do you think of the farming today? Is it healthy / environment-friendly / natural / chemical /

organic / green?

StepⅡReading comprehension: Chemical Or Organic Farming? (P14)

1. Fast reading

Skim and match the main idea with each paragraph.

Paragraph 1 A. Problems caused by chemical fertilizers.

Paragraph 2 B. Farmers and customers turn to organic farming.

Paragraph 3 C. Other methods to keep the soil fertile.

Paragraph 4 D. Long-term use of chemical fertilizers can cause damage to the land and people’s health.

2. Careful reading

Read the passage carefully and answer the following questions.

1. Why are chemical fertilizers so popular in farming today?

2. What problems can be caused by using chemical fertilizers?

3. What is organic farming?

4. What is the main reason for using organic farming methods?

3. Listening

Listen to the tape and follow it in a low voice.

Step Ⅲ Language points.

【重点语句】

1. Recently, however, scientists have been finding that long-term use of these fertilizers can cause damage to the land and, even more dangerous, to people’s health. 然而最近科学家们发现长期使用这些肥料会造成土地受损，甚至更危险的是，会对人们的健康造成危害。

【句子分析】

① have been finding是现在完成进行时。其结构为：主语+助动词（have / has）+ been + v.-ing +其他成分。其表达的意思有两种：

√ 表示从过去某时开始一直持续到现在的动作，并且还将持续下去。

√ 表示在说话时刻之前到现在正在进行的动作。

The Chinese have been making paper for two thousand years. 中国有2000年的造纸历史。（动作还将继续下去）　　

I have been learning English since three years ago. 自从三年前以来我一直在学英语。（动作还将继续下去）　　

We have been waiting for you for half an hour. 我们已经等你半个钟头了。(表示在说话时刻之前到现在正在进行的动作)

② 重点词语damage 在句中作名词，意思为“损坏”，后接介词to。后面接介词to 的名词还有：solution, key, answer, reply, entrance等等。

The key to an entertainer’s success is personality. 一个演员成功的关键在于他是否有个性。

They blocked the entrance to the cave with big rocks. 他们用石头堵塞了洞口。

Microsoft developed an intelligent solution to this problem. 针对这个问题，微软采用了非常聪明的解决方法。

We expect your reply to our inquiry. 我们期待着贵方对我方询问做出答复。

【尝试运用】

1）Since the unfortunate accident took place last week, I _____________________________ at all well. (sleep)

自从上周发生了那次不幸事故之后，我一直睡得很不好.

2）- Why, Jack, you look so tired!

- Well, I _____________________________ the house and I must finish the work tomorrow. （paint) “杰克，你为什么看起来如此疲惫？”“哦，我一直都在粉刷房子，并且我明天必须完成。”

【重点语句】

2. Crops such as peas or soybeans put important minerals back into the soil, making it ready for crops such as wheat or corn that need rich and fertile soil. 像豌豆或大豆这样的农作物将重要的矿物质带回土壤，从而使之适宜于种植要求土壤肥沃的农作物。

【句子分析】

① 本句结构复杂，其主干结构为：主句(Crops put important minerals back into the soil) + 状语(making it ready for crops)。

② 状语中又包含“make + it + 形容词”结构和由that引导的定语从句(that need rich and fertile soil)。

【尝试运用】

1) He was caught in the rain, thus _____________________________. （make）

他被困在雨中，结果使自己感冒了。

2) This produced a chain reaction, _____________________________for life to develop. (possible)

这就产生了一系列反应，使得生命有可能开始发展。

【重点语句】

3. Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then leaving it in the ground to become a natural fertilizer for the next year’s crop. 还有些有机耕作者喜欢在农作物之间种草，以防止水土流失，并且把草留在地里，从而成为来年农作物的天然肥料。

【句子分析】

①本句的主干结构是一个简单句，其结构是：主语(farmers) + 谓语(prefer) + 并列宾语(planting ... + leaving ...)。

②其中between crops和in the ground作地点状语。

③两个宾语后面又分别带有一个不定式作目的状语（to prevent wind or water from carrying away the soil和to become a natural fertilizer for the next year’s crop）。

【尝试运用】

1) The UN has been taking effective measures _____________________________. (rid)

联合国一直在采取有效措施，让世界摆脱饥饿。

2) Many farmers fertilize their crops _____________________________. （grow）

许多农民给庄稼施肥，为的是让庄稼长得更快些。

【新题型训练】

第二节（共10小题；每小题1.5分，满分15分）

阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

What are some of the problems（1）________________（cause）by chemical fertilizers? First, they damage the land（2）________________killing the helpful bacteria and pests as well as the（3）________________（harm）ones. Chemicals also stay in the ground and underground water for a long time. This affects crops and,（4）________________, animals and humans, since chemicals get inside the crops and cannot just（5）________________（wash）off. These chemicals in the food supply build up in people's bodies（6）________________time. Many of these chemicals can lead to cancer or other（7）________________. In addition, fruit, vegetables and other food grown with chemical fertilizers usually grow too fast to（8）________________of much nutrition. They may look beautiful,（9）________________ inside there is usually（10）________________water than vitamins and minerals.

第一节短文改错（共10小题；每小题1分，满分10分）

英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用（＼）划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均仅限一词；2. 只允许修改10处，多者（从第11处起）不计分。

Organic farmers use many methods to keep the soil fertile. They often change the kind of crop in each field every a few years. For example, they grow corn or wheat, following by peas or soybeans the next year. Crops such as peas or soybeans put important minerals back into the soil, make it ready for crops such as wheat or corn what need rich and fertile soil. Organic farmers also plant crops to use different level of soil. For example, they plant peanuts that use the ground's surface. Then they grow vegetables that put down deep roots. Some organic farmers prefer plant grass between crops to prevent wind or water from carry away the soil. Then they leave them in the ground to become a natural fertilizer to the next year's crop. These many different organic farming methods have the same goal: to grow good food and avoid damage the environment or people's health.

【Supplementary Reading】

Plastic Or Cloth Bags?

Over the past half century, plastic bags have become very common in our daily life. We welcomed them as a convenient way to carry goods. Recently, however, we have been finding that they can cause damage to the environment, even worse, to people’s health.

What are some of the problems caused by plastic bags? First, people often leave plastic bags here and there, making white pollution. Second, it takes a long time, more than 100 years, to be exact, to break up. Last but not least, when heated, plastic bags can produce something harmful, which can build up in our body and eventually lead to cancer or other illnesses.

With these discoveries, we are beginning to turn to cloth bags. They can be used many times. People can save a lot of source in this way. It is also a good idea to make some by ourselves, which is interesting.

Let’s use cloth bags in our daily life instead of plastic bags, not only for the environment protection, but also the sake of our health.

组长点评

本导学案的亮点是列出了文中的重点短语，照顾了中下层学生，让所有的学生都能很好地进入学习状态，而且注重基础知识与能力提升相结合，使所有的学生都能“跳一跳摘到桃子”，更难得的是增加了新题型的训练，并且与书本内容相结合，一来使学生对课文更熟悉，二来训练了新题型，另外，最后的课外阅读材料给那些成绩优异的同学提供了更多的阅读机会。

不足: 句子分析部分可以留空让学生填，让学生自己学会分析句子结构。