人教版八年級英語下冊《Have you ever been to a museum?》SectionB PPT課件下載(第1課時)，共52頁。
Warm up
Do you like traveling?
Have you ever been anywhere interesting?
Let’s guess the places of interest.
a symbol of China
be famous all over the world
the longest wall in the world
Language points
1. -How long have you been in China?
你在中國待多長時間了？
- I’ve been here for two weeks.
我來這兒已經(jīng)兩周了。
1). how long, how soon, how often, how far區(qū)別
① How long 多久，多長(時間)。對時間段提問，如: for+ 時間段；since+過去的時間點/過去時的句子。必須與持續(xù)性動詞連用。
-How long have you worked in Beijing?
-For five years. / Since five years ago.
② How soon多久以后。對“in+時間段提問，常用于一般將來時”，其答語常用“in+時間段”。
e.g. --How soon will Mr. Li be back?
--In a week.
③ How often 多久一次，對頻率提問，其答語為:
once (twice/…)+時間段, always, usually 等。
e.g. --How often do you exercise?
--Once a day.
④ How far 多遠(yuǎn)，對距離提問，其答語是表距離的內(nèi)容。
e.g. --How far is it from here to your school?
--Three kilometers.
2). be in+地點,意思是待在某地，表持續(xù)的狀態(tài)�？梢耘c一段時間連用。如果地點是here, there, home, abroad等副詞時，要省去in.
注意：短暫性動詞(come, go, leave …)可以用于現(xiàn)在完成時。但不能用于有for或是since的肯定句中。
-How long have you been in No.41Middle School.
-I have been here for almost two years.
-你來 41中多長時間了？
-我來41中差不多兩年了。
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關(guān)鍵詞：Have you ever been to a museum? PPT課件免費下載，.PPT格式；
