人教版七年級英語上冊《My favorite subject is science》SectionB PPT課件(第2課時)，共14頁。
Warming up
Practice the conversation with your partner.
A: Xiao Hong,what’s your favorite subject?
B: My favorite subject is...
A: Why do you like...?
B: Because it’s...
Language points
1.I am very busy on Friday.我星期五非常忙。（教材第53頁）
此處介詞on用于表示星期的名詞前，表示“在星期幾”，也可用于星期幾的上午、下午或晚上前。但如果表示星期的名詞前有this/that/next/ last等修飾詞時，其前就不再用on。
如：on Friday morning 在星期五早晨
Please come to my home this Saturday.
2.The teacher says it is useful.老師說它很有用。（教材第53頁）
（1）該句為一個賓語從句，由引導詞that引導，此處that省略了，在英語口語中that常省略。類似的句子有：
I think it is difficult.
（2）useful adj. 有用的，有益的。
【拓展】涉及不定冠詞a/an,應用“a”。
如：a useful book一本有用的書
3.from...to...從……到……
from...to...屬于介詞短語。
如：from one to thirty從1到30
4.辨析Mr.,Miss與Mrs.
Mr.(先生)，Miss(小姐)和Mrs.(夫人)均用于姓氏前。Mr.+男子姓。
Mrs.用來稱呼已婚女子，Mrs.+丈夫姓。
此外，人們還常用 Ms(女士)來形容婚姻狀況不明的女子。
Exercise
一、從方框中選擇介詞填空。
at from...to... on after for
1.She has breakfast __________ 6:30.
2.__________ class,we have lunch at 12:00.
3.I play computer games __________ Sunday.
4.We have class __________ 8:00 __________ 11:00 in the morning.
5.On Saturday,we play soccer _________ half an hour(半小時).
二、單項選擇。
1.Are you busy _________ Saturday?
A.in B.on C.at
2.Math is difficult _________ interesting.
A.because B.and C.but
3.We _________ English on Monday,Tuesday and Thursday.
A.want B.have C.go
4.We _________ our classes _________ 5:00 P.M.
A.go;in B.finish;at C.need;on
5.The teacher _________ geography is _________.
A.say;use B.say;useful C.says;useful
... ... ...
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