Step 1 Warming up
1)T. gets Ss to discuss some signs .
2)To give a definition about V-ing form .
Step 2 Presentation
1)Ss. Find and underline the sentences in the passage that use V-ing forms as eithe r the subject or the object.
2) To help Ss draw a conclusion a bout V-ing form .
语法学习——动名词
1. 动名词作主语
1） 名词直接放在句首作主语。例如：
Using the right hand to shake hands is a convention in many countries.
用右手握手是许多国家的一种习俗。
2） 动名词在“It is no use/ no good/ fun / a waste of time/ a g ood pleasure 等名词 + doing”结构 中作主语， it为形式主语。
3） 动名词在“It is useless/ nice/ good/ interesting/ worthwhile 等形容词 + doing”结构中作主语。
4） 动名词在“There is(was) no + doing”结构中作主语。
