资源描述
Unit 4 Finding your way
Grammar
Teaching Aims:
1. Introduce the usage of a, an and the.
2. Learn some prepositions of place.
Step 1. Presentation
Enjoy a picture and present the new word ‘cage’.
Step 2. Warming up
Enjoy more pictures and talk about the usage of a, an and the.
Step 3. Explanation
不定冠词a / an 的用法
1.第一次提到某人或某物时。
I have a book.
2. 泛指某一类的人或物。
A panda is very lovely.
判断一个单词用a还是用an，是根据其读音，而不是根据其首字母。以元音音素开头的词前用“an”，以辅音音素开头的词前“a” 。如：an hour, an apple, an elephant, a useful book等。
定冠词the的用法
1.指上文提到过的人或物。如：
Lucy bought a new bike, the bike is green.
2.世界上独一无二的事物。如：
the sun the moon
3.谈到彼此都知道的人或事物。如：
Open the door, please.
4.序数词和形容词最高级前。如：
She is always the first to get to school.
5.乐器名词前用。
play the piano play the violin
6.定冠词与形容词连用表示一类人，加在姓氏前面表示一家人。
the rich the young
7.某些专用名词和习惯用语中用定冠词。
the Great wall by the way
不用冠词的情况
1名词前已经有指示代词（this, that, these, those）、形容词性物主代词（my, his, our …）或名词所有格等限定词。
2.表示语言、学科、三餐、球类运动、棋类运动的名词前。
3.表示星期、月份、季节、某些节日的名词前。
4.表示人名、国名、称呼语或头衔等专有名词前。
5.某些固定短语中。 by bike , by bus, at first, at work, on foot, go to school, go to bed ,等。
Step 4. Doing exercises
1. Complete the dialogue on Page 47.
Notes:
across作介词，既可表示静态的位置关系，意为“在……对面”，也可表示动态的移动方向，通常和一些表示“移动”的动词搭配使用，意为“从……穿过”。例如：
The hotel is just across the flower shop.
旅馆就在花店的对面。
It will take them two weeks to walk across the desert.
徒步穿过这片沙漠将会花费他们两周的时间。
2. Do more exercises.
在必要的地方用a, an, the填空。
1. Where is Peter? He isn’t at ___ school. ×
2. There is ___ orange in the fridge. an
3. ____ pencil on the desk belongs to Sandy. The
4. I have __ new bike. I clean ___ bike every day. a, the
5. Dad often goes fishing in ____ summer. ×
6. A: Can I help you?
B: I’m looking for ___ pair of shoes. a
7. The students often go to school by ______ bike. ×
8. Who is good at playing ______ football in your class? ×
9. _____ boy in a red coat is my cousin. The
10. I live on ____ third floor. the
11. There is ___ “h”, ___ “o”, ___ “u” in the word “hour”. an, an, a
12. Simon likes to play ____ piano but he doesn’t like to play ___ basketball. the, ×
13. Beijing is ____ capital of China. the
Step 5. Presentation
1. Use some pictures to present the new word about prepositions of place.
2. Read about the new words.
Step 6. Explanation
over 在……的正上方
under 在……的正下方
above 在……的上方(表面
不接触)
below 在……的下方
on 在……的上面(表面接触)
Step 7. Exercises
1. Do the exercises on page 48.
2. Check the answers.
3. Do more exercises.
填入适当的介词使句子通顺。
1. The football is ______ the door, so I can’t see it. behind
2. Don’t stand __________ us, or we can’t see the film clearly. in front of
3. There is an electric fan _____ the desk. on
4. Look! Your rubber is _____ the chair. Pick it up. under
5. The moon is now _____ the trees. above
6. Eddie doesn’t want to live __ the palace. in
7. Stephen is chatting with his friends ___ the balcony. on
8. Li Ming is my neighbour. His house is _____________ mine. beside/ next to
Step 8. Homework
1. Remember the new words in this lesson.
2. Finihs the exercises in the workbook.
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