(
课件网) Grammar in Use Changing and Growing Unit 4 Learning aims 能正确使用过去进行时 能正确含后缀-less和-ful Lead in Look at the pictures and read the sentences. Pay attention to the words in bold. The doctor feels helpless to save the patient’s life. He wishes he could be more helpful. The symbols are very useful to pay online, but they are useless without a cellphone. Your boss doesn’t allow any careless mistakes, so you’d better be very careful in your work. Activity 1 Know how to use words with suffixes -less and -ful 1 后缀 -ful 含义：表示“充满……的”、“有……性质的”、“倾向于……的”。 它给名词赋予了一种积极或充足的含义。 发音： /f( )l/ （和单词 full 的发音一样） 构成：名词 + -ful → 形容词 例子 (Examples): use（用途） + -ful → useful（有用的） 2. 后缀 -less 含义：表示“没有……的”、“缺乏……的”、“不……的”。它给名词赋予了一种消极或缺失的含义。 发音： /l s/ 构成：名词 + -less → 形容词 例子 (Examples): use（用途） + -less → useless（无用的） But they are useless without a cellphone. help（帮助） + -less → helpless（无助的） The doctor feels helpless. care（小心，谨慎） + -less → careless（粗心的） Exercise Complete the sentences with the correct form of the given words. 1. Li Hong was _____ (joy) because she got a good grade in the exam. 2. After years of hard work, my uncle became _____ (success) and now he lives an easy and comfortable life. 3. You were doing very well yesterday. Be _____ (hope) and you’ll succeed. 4. He learned a lot after visiting many _____ (wonder) places. 5. Smoking is _____ (harm). No one should smoke in public joyful successful hopeful wonderful harmful Complete the text and fill in the blanks. aimless helpful hurtful painful priceless useless Youth is an important period of time for growing up. It can be hard and _____, but you grow in every way and learn more about life. Sometimes, you may feel _____. But your teachers are always there for you, and your friends can also be _____. Some people may say something _____ to you, but they might not mean it, and you can talk to them and learn to communicate with people. Maybe, you find some subjects difficult and _____. However, you will understand the true value of knowledge later on. In a word, youth is a _____ experience. You should make the most of it. painful aimful helpful hurtful useless priceless Activity 2 Use the past continuous tense correctly Pair work. Read the conversation. Pay attention to was/were doing What were you doing at this time yesterday I was watching a movie with my parents. What movie were you watching Is it My Country and My People Yes. We felt moved when we were watching it. 探究一：过去进行时的结构和用法 1. 含义：过去进行时表示_____或_____正在进行或发生的动作。 过去某一时刻 过去某一时间段 What were you doing at 8 o’clock yesterday What was Jenny doing from 7 to 9 last night 过去某一时刻 时间段 过去进行时的结构 肯定句 主语＋was/were＋v-ing＋其他. 否定句 主语＋wasn't/w ... ...
