Unit 7 It's the polite thing to do（课件）教科版（广州）英语六年级下册

Unit 7 Articles 定冠词和不定冠词 Warm up Presentation I Presentation Il Presentation Ill Practice Production Look and Say看一看，说一说 This is a pear. This is an apple. Presentation I-Sentences 朗读句子，找出句中的不定冠词a或an。 e.g.There are 12 months in ayear. Anorange?But I want apear. Abird can fly. Arelephant has along trunk. His father is adoctor. Presentation I-Sentences I work in aprimary school in Beijing. a few have alook have acold in aword Presentation I-Grammar Box 不定冠词 不定冠词的用法： a和a用在单数可数名词前，表示泛指，相当于汉语中的“一”。a用在以辅音 音素开头的单词前：an用在以元音音素开头的单词前。 e.g.a ruler/a boy/an eraser/an egg/an hour/a university/an umbrella 不定冠词的意义： 1)a/an表示一类人或一类事物。 A dolphin is very cute.海豚很可爱。 2 a/an表示数量“一”。 There is an old photo on the wall..墙上有一张I旧照片。 3) aan用在表示时间或度量单位的名词前，表示“每一”。 I exercise twice a week.我每周锻栋两次。 4 a/an用于初次提及某人或某物。 I met an old friend on my way home. 我在回家的路上遇到了一位老朋友。 5 a/an用在某些固定短语中。 have a look看一看 have a cold感冒 have a fever发烧 have a rest休息一下 have a talk谈话 in a word总而言之 in a hurry匆匆忙忙 Magic hand: pear office toy hat desk egg apple actor hour computer Presentation ll-Sentences 读一读下列句子，请圈出定冠词。 I bought a dictionary yesterday.The dictionary is very useful. Open the door,please. Do you know the boy in blue? We should help the poor. Tom is the tallest boy in our class. Presentation ll-Sentences I live on the second floor. The sun rises in the east every day. I have been to the Summer Palace before. TheSmiths visited Beijing last week. I can play the guitar. My mother gets up very early in the morning. Presentation ll -Sentences in the end终于 in the east在东方 in the morning在上午 onhe)eft在左边 by the way顺便说一下 in the daytime在白天 at the beginning在开始 Presentation II-Grammar Box 定冠词 定冠词的用法：定冠词th表示特定的人或物，用于可数名词单数、复数前和不 可数名词前。意思是“这个，这些，那个，那些”。th用在以元音音素开头的 单词前读心/，用在以辅音音素开头的单词前读ǒ/。 定冠词的意义： 表示前面提到过的人或物。 I bought a dictionary yesterday.The dictionary is very useful. 我昨天买了本词典，这本词典很有用。 2 表示说话双方都知道的人或物。 Open the door,please..请开门。 3) 表示特指某些人或事物。 Do you know the boy in blue?你认识穿蓝衣服的男孩吗？ 4 用在形容词前表示一类人。 We should help the po