人教版七年級英語上冊《My favorite subject is science》SectionA PPT課件(第2課時)，共14頁。
Warming up
Make a conversation with your deskmate:
—What’s your favorite subject,Li Hong?
—My favorite subject is...
—Why do you like...?
—Because it’s...
Fill in the blanks with what, who or why.
1. A: _______ do you like history?
B: Because it's interesting.
2. A: _______ like math?
B: Eric does.
3. A: _______ is your favorite subject?
B: My favorite subject is P.E.
4. A: _______ is your science teacher?
B: My science teacher is Mr.Chen.
5. A: _______ do you like art? B: Because it's fun.
語法拓展
特殊疑問句
特殊疑問句是對句中某一部分內(nèi)容提出疑問的問句，是指以“what, who,when,where,why,how等”開頭的疑問句，也稱wh-疑問句。特殊疑問句與一般疑問句不一樣，它不能用yes或no回答。
1.構(gòu)成：疑問詞+其他句子成分？其中，疑問詞包括疑問代詞和疑問副詞兩種。
疑問代詞有：what,who,which,whose,whom
疑問副詞有：how,why,when,where
（1）倒裝句結(jié)構(gòu)：疑問詞+一般疑問句？此時，疑問詞及其所修飾的部分不作主語，即作賓語、定語、表語、狀語等。
What do you like for lunch?（作賓語）
（2）陳述句結(jié)構(gòu)：疑問句+謂語動詞+賓語/表語/狀語？此時，疑問詞及其所修飾的部分作主語。
Who teaches you math?（作主語）
Whose shoes are on the chair?（與名詞一起作主語）
2.疑問詞小結(jié)：
（1）針對事物的名詞提出疑問，疑問詞用what。
What's your favorite subject?
（2）對指人的名詞或代詞提問用who。 Who's he?
（3）對具體時間提出疑問，用when。
When do you play basketball?
（4）對地點提出疑問，用where。 Where's my pen?
（5）對原因提出疑問，用why。 Why do you like art?
（6）對方式、程度、價格等提出疑問用how。
How much are the trousers?
（7）對年齡提問，用how old。 How old is he?
（8）對顏色提問，用what color。 What color is your pencil?
Exercise
一、用what,who或why填空。
1.A:_________ do you like history? B:Because it's interesting.
2.A: _________likes math? B:Eric does.
3.A:_________ is your favorite subject? B:My favorite subject is P.E.
4.A:_________is your science teacher? B:My science teacher is Mr. Chen.
5.A:_________do you like art? B:Because it's fun.
二、句型轉(zhuǎn)換。
1.His favorite subject is science.（改為否定句）
His favorite subject ________ _________ science.
2.Her favorite subject is music.（改為一般疑問句）
_________ _________ favorite subject music?
3.My favorite subject is history.（對畫線部分提問）
_________ _________ favorite subject?
4.Do you like art?（作否定回答）
_________,I _________.
Homework
1.Try to remember the new words.
2.Make a conversation by using the important sentences.
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