1、课时1教学目标学会使用a和an教学重点a,an的区别教学难点教 具挂图 录音机 单词卡教 学 过 程个性化教案a用于辅音前;an用于元音前。一般说来,元音字母发元音,辅音字母发辅音,但需请注意以下3点: 1. 拼写以辅音字母开头读音却以元音开头的单词hour, honest, honor等单词的拼写虽然以辅音字母h开头,但其读音却以元音开头,因此,前面要用等单词的拼写虽然以辅音字母an。可熟记下面这句话:An hour ago, an honest man accepted an honorable task. (一小时前,一位诚实的人接受了一项光荣的任务。)2. 拼写以元音字母开头读音却以辅
2、音开头的单词useful, university, usual, European, united, one-eyed, one-way等单词的拼写虽然以元音字母开头,但其读音却以元音开头,因此,前面要用a等单词的拼写虽然以元音字母开头,但其读音却以元。In a university, a European and a one-eyed man walk along a one-way road with a usual tool. This is a usual thing. (在一所大学里,有一个欧洲人和一个独眼龙拿熟记绕口令特殊用法 着有用的工具沿着一条单行道行走,这是件平常的事。)如:
3、Five years ago her brother was _ university student of _ physics. (上海卷)A. a; the B. an; C. an; / D. a; /【分析】答案选D。因为university是以辅音j开头的要用a,排除B和C;physics是学科名词,前面不用冠词。3. 英文字母前用a还是用an的问题在26个英文字母中,a, e, i, o, f, h, l, m, n, r, s, x等12个字母的读音是以元音开头的,其余字母则是以辅音开头的。如:Please pay attention to your spelling. You
4、have dropped _ ”m” here. (全国卷)A. an B. the C. / D. a【分析】答案选A。因为字母答案选m的发音是以元音e开头的,所以用an;这里的an的意义与one相当,表示“一个”。观察例题例题2板书设计useful, university, usual, European, united, one-eyed, one-way课后反思复习上节课内容冠词是一种虚词,用在名词或名词词组的前面,表示名词是特指还是泛指。冠词可分为不定冠词和定冠词两种形式。 不定冠词有 a, an。 定冠词有 the. 其中, a 用在发音以辅音开头的名词之前, 而 an 则 用在
5、发音以元音开头的名词之前。不定冠词的用法:1) 表示某一类人或某事物中的任何一个,经常用在第一次提到某人或某物时,用不定冠词起介绍作用,表示一个。I gave him a book yesterday. 我昨天给了他一本书。 I am reading an interesting story . 我在读一本有趣的故事书。I have got a ticket. 我有一张票。There is a tree in front of my house. 我的屋前有一棵树。2) 表示人或事物的某一种类, 强调整体, 即以其中的一个代表一类。A horse is useful to mankind. 马
6、对人类有用。 A bird can fly. 鸟会飞。A steel worker makes steel. 炼钢工人炼钢。自主复习了解用法观察例句 3) 不定冠词用在事物的单位前,如时间, 速度, 价格等意义的名词之前,表示 每一。 We often go to school two times a day. 我们常常一天两次去学校。 I went to the library once a week at least. 我一星期至少去一次图书馆。 The potato is sold at about 30 fen a jin. 土豆卖三毛钱一斤。4)不定冠词用来指某人某物,但不具体说明任
7、何人或任何物。 A boy came to see you a moment ago. 刚才有一个小孩来找你。 I got this tool in a shop. 我在商店买的这件工具。 We need a car now. 我们现在需要一辆车。 She is ill, she has to see a doctor. 她病了,她得去看病。5) 不定冠词用于某些词组。 a few 几个 a little 有点 She has a few friends in this city. 她在这个城市中有几个朋友。 There is a little milk in the bottle. 瓶子里有
8、点牛奶。 Only a few students are in the classroom. 只有几个学生在教室里。 定冠词的用法。观摩实例不定冠词用来指某人某物不定冠词用于某些词组We often go to school two times a day. 我们常常一天两次去学校。 1) 定冠词特指某(些)人或某(些)事物, 以区别于同类中其他的人或事物。 The bag in the desk is mine. 桌子里的书包是我的。 Is this the book you are looking for? 这是你要找的书吗? Do you know the man in back? 你知
9、道穿黑色衣服的人是谁吗? It is not the car we are looking for. 这不是我们要找的车。 The man has found his child. 那个人找到了他的孩子。 2) 定冠词用来指上文中已提到过的人或事物。 I bought a book from Xinhua book-shop. The book costs 15 yuan. 我从新华书店买了一本书. 这本书值十五元。 I saw a film yesterday.The film was ended at eight oclock. 我昨天看了一场电影。电影八点钟结束的。 Lucy bough
10、t a radio yesterday, but she found something was wrong with the radio. 露西昨天买了一台收音机,但是她发现收音机有问题。3) 定冠词用于表示世界上独一无二的事物或用于自然界现象或方位名词之前。 the sun the moon the earth the sky the world the winter night The sun is bigger than the moon. 太阳比月亮大。 I can see a bird in the sky. 我能看到天空中有一只小鸟。 I like to have a walk
11、with the bright moon light in the evening. 我愿晚上在明亮的月光下散步。The bag in the desk is mine.I saw a film yesterday.The film was ended at eight oclock.he sun the moon the earth the sky the world the winter night The sun is bigger than the moon.4) 定冠词与单数名词连用,表示这一类人或物。 The dog is not too danger. 狗不太危险。 The ca
12、t is an animal. 猫是一种动物。 The umbrella in the shop is very cheap in this season. 这个季节商店里的雨伞很便宜。5) 定冠词与某些形容词连用,使形容词名词化, 表示某一类人。 the poor, the rich, the wounded, the sick, the deaf. The wounded were brought to the hospital. 受伤者被送到了医院。 He always helps the poor. 他经常帮助穷人。 The deaf can go to this special school. 耳聋者可以进这所特殊学校上学。复习回顾he umbrella in the shop is very cheap in this season. the poor, the rich, the wounded, the sick, the deaf. The wounded were brought to the hospital.He umbrella in the shop is very cheap in this season.He sun the moon the earth the sky the world the
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