文档介绍：Unit 10
I’ve had this bike for three years.
Self Check
I haven't been to a museum __________
_________ .
2. I haven’t written a letter _____________.
3. I haven't ridden a bike _________________
_______.
plete the sentences using for or since.
Self Check
since four
years ago
for five years
for more than half
a year
4. I haven't seen a movie __________________.
5. I haven't puter games _______
_______.
for several months
since last
term.
A: Hey Eric, _______ you enjoyed your time in
Beijing so far?
B: Yes, it ____been great! Everyone is so
friendly.
A: How long _______ you been in China now?
B: Oh, I ______ here _____ about two years now.
plete the conversation.
have
has
have
have been
A: Wow, that means you haven’t_________
back to the US for two years?
B: No; I _______ been back twice _______
moving to China. _______ you been to the
US before, Li Juan?
A: Yes, I went there once when I ____ 10 years
old, but I ______ not been back______ then.
been
have
since
Have
was
been
since
1. Both  his  parents  look  sad .Maybe
they  ________what's  happened  to  him .
A.  knew  B.  have known  
C.  must know   know
2. He  has  _____ been  to  Shanghai , has  he ?
A.  already           D. still
一、单项选择。
B
B
Exercises
3. The famous writer _____ one new book in
the past two year
  writing      writing   
    written
4. -- Our country  ______ a lot so far .
-- Yes . I hope it will be even ______ .
A. has  changed ; well   B.  changed ; good
C. has  changed ; better D.  changed ; better
D
C
5. Zhao Lan ______already  ______in this
school for two years .
A. was ; studying             B. will ; study
C. has ; studied                D. are ; studying
6. We ______ Xiao Li since she was a little girl.
A. know   B.  had  known  
C. have  known   D.  knew
C
C
7. Harry Potter is a very nice film .I_______
it twice .
A.  will  see     B.  have  seen    
C.  saw  