一课一题一语法:新概念英语第1册第49-50课
下面是第47-48课的参考答案:【答案】否定句:I do not / don't like swimming in the sea in summer.划线提问:Where do you like swimming in summer?【简析】因为原句的谓语动词没有be动词,也没有助动词或情态动词,所在变为否定句或疑问句时,要借用助动词do。要注意第一人称改为疑问句时,要变为第二人称。
【本期内容】
下面我们继续本周《新概念英语1》第49-50课的重点句型或语法的分享。先来读一读第49课的课文:
一、课文原文
二、重点句型或语法
本课继续学习一般现在时的用法,本课侧重的是当主语是第三人称时的用法,其基本结构为:He / She / It is ...They are ...He / She / It does ...They do ...
如:He is a new student from Russia。
他是来自俄罗斯的新生。
They need to think big. 他们要敢想。
本课也是侧重学习一般现在时表习惯爱好的用法,而课文中也主要是通过like与want两个动词的用法,来表达喜好的。
需要注意的是:
like一般表示长久的爱好,而want一般表示一时的喜好。
如:He likes milk.他喜欢牛奶。
They want milk.他们要牛奶。
注意一般现在时的否定句和疑问句的表达。
如果句子的谓语还有be动词,则直接在be动词后面加not来构成否定句,把be动词提到主语前面来构成疑问句。如:
She is your Chinese teacher.
She is not your Chinese teacher.
Is she our Chinese teacher?
Who is she?
如果句子的谓语含有情态动词,则按照情态动词的用法去进行结构转化。如:
She can drive a bus.
She cannot / can't drive a bus.
Can she drive a bus?
What can she drive?
如果句子的谓语是实义动词,则需要借用助动词do来构成否定句和疑问句。如:
She wants some juice.
She does not / doesn't want any juice.
Does she want any juice?
What does she want?
三、一课一题
根据本课的重要语法点,让我们来练一练吧,请把下的句子改为否定句,并就划线部分提问。 She wants some bread for lunch.