高中英语 Unit 5 The power of nature Section Ⅲ Grammar教学案 新人教版选修6-新人教版高二选修6英语教学案

Section Ⅲ Grammar——动词ing 形式的用法课前语法感知Ⅰ.教材语法感知教材原句①Sometimes working outdoors, sometimes in an office, sometimes using scientific equipment and sometimes meeting local people and tourists, I am never bored.②Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast.③Having worked hard all day, I went to bed early.④Having experienced quite a few earthquakes in Hawaii already, I didn't take much notice.⑤Having earlier collected special clothes from the observatory, we put them on before we went any closer.⑥Having studied volcanoes now for many years, I am still amazed at their beauty as well as their potential to cause great damage.⑦The other two climbed down into the crater to collect some lava for later study, but this being my first experience, I stayed at the top and watched them.探究发现(1)动词ing 形式有一般式 (doing) 和完成式 (having _done)两种。(2)动词ing 形式的一般式所表示的动作与谓语动词的动作之间一般没有时间先后之分，如例句①。动词ing 形式的完成式所表示的动作通常先于谓语动词发生，如例句②、③、④、⑤和⑥。一般情况下，非谓语动词的逻辑主语是句子的主语，倘若非谓语动词有自己独立的逻辑主语，则构成独立主格结构，如例句⑦。Ⅱ.真题语法感知1 ． (2018· 全 国 卷 Ⅱ )We will visit Disneyland Paris park, ________ (stay) until late to see the parade and the fireworks.答案：staying2．(2018·北京高考)A month before my first marathon, one of my ankles was injured and this meant not running for two weeks, ________ (leave) me only two weeks to train.答案：leaving3．(2018·天津高考)He smiled, ________ (shake) his head.答案：shaking4．(2017·天津高考)The hospital has recently obtained new medical equipment, ________ (allow) more patients to be treated.答案：al...