Period 4: Grammar

学习目标：

1. 掌握单元语法：一般将来时

2. 利用例句归纳出语法规则

学习重点：

掌握单元语法：一般将来时

学习难点：

利用例句归纳出语法规则

课前预习

使用说明与学法指导：

1. 利用例句归纳出语法规则

教材助读：

　　Junk food is an informal term applied to some foods with little or no nutritional value, or to products with nutritional value but which also have ingredients considered unhealthy when regularly eaten, or to those considered unhealthy to consume at all. The term was coined by Michael Jacobson, director of the Center for Science in the Public Interest, in 1972.

Factors contributing to labeling as junk food are high levels of refined sugar, white flour, trans fat and saturated fat, salt, and additives such as preservatives and coloring agents. Others include lack of proteins, vitamins, fiber and other nutrients for a healthy diet.

　　Some fast food is popular because it is inexpensive and resistant to spoilage. These products may also be popular with consumers because they are widely available, require little preparation, and are easy or especially fun to consume. Junk food is associated with health problems including obesity, heart disease, Type 2 diabetes and dental cavities. Problems with fast food may not be apparent to children, hence advertising aimed at children has come under criticism.

预习自测：

用括号中词的适当形式填空。

1. Even if it _____(rain) tomorrow, I will go to school.

2. Can you lie down? I ____ (examine) you.

3. If Tom doesn't come, we ____(lose) the game.

4. I had just arrived home when it __________(begin) to rain.

5. Watch out! The bus _________ (head) for you!

6. I will give the book to him as soon as he _______ (return).

我的疑问：

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课内探究

质疑探究：

一般将来时态