Unit3 Period Ⅱ Grammar.-【优化探究】2023-2024学年新教材高中英语选择性必修第一册同步导学案配套教参（人教版）

Period Ⅱ　Grammar 单元语法：The ­ing form as the subject (动词­ing形式作主语) 授课提示：对应学生用书第67页 [语法体会] 诵读下列例句并感知加黑部分的共性 (1)[教材原文] Even though the sun is brightly shining, telling whether it is morning or night is impossible. (2)[教材原文] Getting here is quite difficult... (3)[教材原文] For hundreds of years, looking after reindeer was a way of life for the Sami. (4)[教材原文] Being in such a beautiful and wild place makes me feel blessed to be alive. 第(1)(2)(3)(4)句中的动词­ing形式在句中作主语。 [知识精要] 1．动词­ing形式作主语通常表示一般性、习惯性的动作，且谓语动词一般用单数。 Going to Hangzhou by train takes about 10 hours from here.从这儿乘火车到杭州大约要10个小时。 Doing is better than wishing.行动胜于空想。 2．动词­ing形式作主语，且主语较长时，为了平衡句子结构，通常用it 作形式主语。常见句式： It is/was no use/good＋doing...做……无用/益 It is/was useless/worth/worthwhile/a waste of time＋doing...做……是无用的/值得的/浪费时间的 It is a waste of time trying persuading such a person.试图说服这样的一个人是浪费时间的。 It is no good eating too much sweet food.吃太多的甜食没有好处。 [名师点津]　动词­ing形式和不定式都可以作主语，动词­ing形式作主语表示一般或抽象的多次性行为，不定式作主语往往表示具体的或一次性的动作。 Playing with fire is dangerous.玩火危险。(泛指) Be careful！To play with fire will be dangerous.小心点！玩火会带来危险。(指一具体动作) 3．在“There is/was no...”结构中，通常用动词­ing形式。 There is no joking about such a matter.这种事开不得玩笑。 There was no knowing when he would leave.谁也不知道他什么时候离开。 授课提示：对应学生用书第68页 Ⅰ.单句语法填空 1．Walking (walk) is a good form of exercise for both the young and the old. 2．To_master (master) a foreign language calls for a great deal of memory work. 3．It is difficult to_see (see) how more savings can be made. 4．Consulting (consult) this kind of dictionary is really a piece of cake. 5．Since then，finding (find) ways to grow more rice has been his life goal. 6．Eating (eat) more fruit every day is helpful to keep you away from illness. 7．Writing stories and articles is (be) what I enjoy most. 8．It's no use spending (spend) so much money on new clothes. 9．Washing (wash) hands frequently is one of the effective ways to avoid being infected by diseases. 10．Leaving the less important things until tomorrow is (be) often a