Lead in: Do you remember this question? (watch) a family of chimps wake up is our first activity of the day. watchingUnit 2 Working the Land Grammar: V-ing 做主语和宾语1.动词-ing 形式的构成: 是在动词末尾加-ing 形式构成,因此叫动词的-ing 形式。 如:do-doing,help-helping,ask-asking,etc. 否定形式:not+-ing 构成 2.动词-ing 形式不能单独作谓语 如：Ireadingthebook.( 改错) I am reading the book.一作主语. 动名词作主语时，句子有三 种形式： 1. 动名词直接置于句首主语的位置上。 1) 对别人说谎是我们万万不能干的. is something we should never do 2) 学习新单词对我来说非常重要。 is very important for me 3) 说比做容易。 is easier than doing
