高考英语语法复习-情态动词与虚拟语气ppt课件
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语法项目(一)情态动词情态动词的基本用法(表能力、表推测、 表请求、命令、允诺、义务等) 导一题尝试(单句语法填空)1. (2015*北京高考改编)一Can ,t you stay a little longer?一It's getting late. I really must g 0 now. My daughter is home alone.情态动词和虚拟语气语法要点•讲练悟通学什么、怎么学——分点突破更快捷 要点一2.(2015-重庆高考改编)You must be Carol. You haven'tchanged a bit after all these years.3.(2014*江苏高考改编)It was sad to me that they, so poorthemselves,should bring me food.4.(2014*江西高考改编)Life is unpredictable; even the poorestmight become the richest.(2014* 四川高考改编)1 still remember my happy childhood 5.when my mother would take me to Disneyland at weekends. —、情态动词can和could的辨析1.表示体力或脑力(知识、技能)所产生的能力,可译为"能够”。
Nobody can stop the development of science.谁也无法阻止科学的发展。
2.表示客观的可能性,可译为“有时会”。
The weather here can be as low as 0°C.这里的气温有时会低至零摄氏度。
3.表示请求建议,用could比can语气更委婉,回答用原形。
Could you wait a few days for the money? 这钱再等几天可以吗?4.(用于否定句、疑问句或感叹句中)表示猜测、怀疑或惊诧。