Unit 1 Dream homes
一、教学内容：
Unit 1 Dream homes
 
二、教学目标：掌握Unit 1的语法、介词和数词
 
三、教学重难点：掌握介词和数词的用法
（一）介词
1. at, in
at：表示相对于说话者来说较小或较狭窄的地点。
例：Let’s meet at six o’clock at the school gate.
in：表示相对于说话者来说比较宽敞的场所或相对较大的地方。
例：I was born in Shanghai, but now live in Beijing.
2. on, above, below, over, under,
on：表示在某一物体接触面上或靠近……的地方。
例：(1) We are now standing on the top of the mountain.
(2) The supermarket is just on your left.
above：表示在某一物体的正上方或偏离正上方的地方，一般不与参照物相接触；另外，也可用来表示某一刻度的上方。其反义词为：below。
例：(1) The picture is above the blackboard.
(2) The temperature is above the zero.
over：表示在某一物体的正上方。其反义词为：under。
例：(1) There is a new bridge over the river.
(2) The ball you are looking for is under your nose.
3. near, beside, nearby, by, next to
near：near=not far, 表示“在……附近，在不远处”。很多情况下等于beside 和nearby。nearby除了用作介词外，还可用作形容词或副词。
例：There is a big shopping mall near our school.
by: 表示比near更近的地方，意思为“靠近……, 就在……边上”。
例：Let the children not play by the water.
next to：相比较距离最近，表示“紧挨着，紧靠着”的意思。
例：Kitty sits next to Sandy.
4. between, among
between：表示在明确的两者之间或多个物体的两者之间。除了表示方位外，between还可指时间。
例：(1) Sandy sits between Kitty and me.
(2) Do you know the difference between American English and British English.
among：表示在三者或三者以上的人或物之间。
例：(1) We are hiding among the trees.
(2) Who is the tallest among the students?
5. in front of, in the front of, behind
in front of：表示“在……（范围以外）的前面”。若要表示“在……（范围内）的前面”，则要用in the front of。另外，与before比较，在表示场所时，常用in front of，而很少用before；表示动态效果的“在……之前”时，常用before。
例：(1) There is a big tree in front of our classroom.
(2) I sit in the front of the class.
behind：表示在某一物体的后面（= at the back of ），与in front of互为反义词。
例：The hotel is just behind our house.
6. in, into, out of, inside, outside
in：表示静止的位置，“在……里面，在……内”。
into：表示“到……里面”，是一个动态的过程。
out of：是into的反义词，表示“从……出来”。
例：(1) We are in the reading-room now.
(2) The boy jumped into the water.
(3) The students went out of the classroom.
inside：用作介词时，与in相同，表示静止的位置，“在……里面，在……内”，除此以外，inside还常用作名词或副词，其反义词为：outside。
例：(1) He is looking inside the room.
(2) Please go outside.
7. along, across, through
along：表示“沿着……（街道、河流等，相当于down）”。
across：表示“横过、横穿……”，（强调从某一平面过去，如河流、街道、广场、桥梁等）。
through：表示穿过某一立体的空间或两边有建筑物的街道等。
例：(1) Walk along (down ) the street till the end.
(2) I walked across the square to look for a taxi.
(3) It took us half a month to travel through the forest.
8. opposite
opposite：常用作介词、副词、形容词，意思是“在……对面；在对面；对面的“等。
例：(1) The window is opposite the door.
(2) He stood opposite.
(3) It’s on the opposite side of the street.
 
（二）基数词
We use cardinal numbers almost every day. We use them for lots of different things.
1. 基数词的读法：
（1）表示“几十几”的数，十位和个位之间用“—”连接。e.g.: 32 thirty-two
（2）101—999之间的数，百位和十位之间加“and”。e.g.: 928 nine hundred and twenty-eight
（3）1000以上的数，从后往前每三位一段，倒数第一段读thousand，倒数第二段读million，依次类推。e.g. 8,543,601 eight million, five hundred and forty-three thousand, six hundred and one
2. 基数词的运用：
hundred, thousand, million, billion等一般用单数，但以下情况用复数：
（1）表示不定数目：e.g. hundreds of      millions of
（2）表示“几十”的数词，其复数形式可以表示年龄或年代。
e.g. in his twenties      in the thirties
 
0
zero
10
ten
20
twenty
100
1
one
11
eleven
30
thirty
one hundred
2
two
12
twelve
40
forty
1,000
3
three
13
thirteen
50
fifty
one thousand
4
four
14
fourteen
60
sixty
10,000
5
five
15
fifteen
70
seventy
ten thousand
6
six
16
sixteen
80
eighty
100,000
7
seven
17
seventeen
90
ninety
one hundred thousand
8
eight
18
eighteen
 
 
1,000,000
9
nine
19
nineteen
 
 
one million
 
（三）序数词
We can use ordinal numbers to order things and events. We use them to talk about dates, floors, results, etc.
e.g. Uncle Jim will arrive on the seventh of June.
The restaurant is on the sixth floor.
Millie came first in the English exam.
 
Cardinal numbers
Cardinal numbers
Ordinal numbers
Ordinal numbers
1=one
10=ten
1st=first
10th=tenth
2=two
11=eleven
2nd=second
11th=eleventh
3=three
12=twelve
3rd=third
12th=twelfth
4=four
13=thirteen
4th=fourth
13th=thirteenth
5=five
20=twenty
5th=fifth
20th=twentieth
6=six
21=twenty-one
6th=sixth
21st=twenty-first
7=seven
22=twenty-two
7th=seventh
22nd=twenty-second
8=eight
23=twenty-three
8th=eighth
23rd=twenty-third
9=nine
30=thirty
9th=ninth
30th=thirtieth
Language points:
1. 序数词的运用：
（1）表示日期：e.g.: 6月1日  on the first of June/ on June (the) first
（2）表示编号：e.g.: lesson 5  the fifth lesson
（below反义词3）起副词作用，前无“the”e.g.: Simon came first in the English exam.
（4）序数词前有限定词修饰时，不加 “the”. e.g.: This is my first lesson.
 
练习
一、根据句意,用适当的介词填空：