初三英语Unit4教案
教材分析(教学要求)
重点1
milliona hundred 100
a thousand 1,000
ten thousand 10,000
a million 1,000,000
重点2 -
if句
上个学期,我们曾经学过由
if 引导的句子,你还记得吗?对了,&
ldquo;
I&
rsquo;
ll not go to the zoo if it rains tomorrow. ( 假如明天下雨,我就不去动物园。)
You can come to the party if you don&
rsquo;
t wear jeans.( 如果你不穿牛仔裤,你就能来舞会。)&
rdquo; 这个学期又在本单元见到了似曾相识的同样由
if引导的句子,比如:&
ldquo;
If I won the lottery,
I would give it to medical research. ( 假如我赢了彩票的话,我就捐给医学研究。)
If I were you,
I would wear jeans and T-
shirt.( 如果我是你,我就穿牛仔裤和
T恤。)&
rdquo;
这两个单元学到的句子都是由
if引导的。那么,它们有什么区别呢?
对了,分两种情况:
1.
something may possible happen 某事发生的可能性较大。
这种情况,有个十三字口诀:&
ldquo;主将从现,主过将从过,主现从现&
rdquo;。即主句是一般将来时,从句用一般现在时;主句用过去将来时,从句用一般过去时;当主句中有
can/
can&
rsquo;
t的话,则从句用一般现在时。例如:
If he has time,
he will come tomorrow.
If she finishes early,
she can come back early.
If you don&
rsquo;
t do homework,
the teacher will scold you.
2.
it is just imaginary,
and nothing will happen 某事只是想象的,并不会发生,或者发生的可能性很小。则要用我们常说的虚拟语气。例如: