if 练习大字.doc

If 与when 从句专练
it___ tomorrow, we __go to the park.
A. rains, won’t
B. will rain, won’t
C. rains, don’t
D. rains, don’t go
2. Alice _______ to see his aunt if she _______free tomorrow.
A. e; will be
B . come ; is
C. e ;is
D. comes ;will be
’m not sure if you __in the exam, but you will be better if you ___harder.
A. eed; work
B. eed; will work
C. will eed; work
D. will eed; will work
4. Next Sunday Jim’s going to fish with his friend if it ___ (  not rain  ).
5. I want to know if he e) tomorrow. If he e), I ______(give) the message to him.
the runner ______(exercise) more, he ____(not get) injured.
7. If you ___(watch) TV, you ____ (not finish) the homework tonight.
the rain__(stop)
tonight,the plane____(take off).
When the rain___(stop) last night, the plane____(take off).
(buy) puter when I ____(have) enough money.
____(not get) nervous when you ____(do ) enough exercise.
she _____ (be) kind to me , I ____(not argue) with her.
am not sure when he e) tomorrow, when he ____(
come), I ___ (call) you up
13 We are not sure if it____(rain)tomorrow. If it ___(rain), our sports meeting ___( stop).
14Do you know when he e)to play basketball with us tomorrow?
I think he e if he ___(be) free.
(not be) more pollution if there___(be) fewer cars in the street in the future.
don’t know if it__(rain) next week. If it__(not rain) next week,the police _______(leave for) Spain.
17. If there _____(be) fewer trees, there ____( be) more pollution.
18. He _____(dress)  more casually when everyone ____( not work) on weekends.
19. I think either of them __(live) alone in the future.
When either of them ____(live) alone in the future, she ____( keep) a pet parrot.
When either of them ____(live) alone last year, she _________( keep) a pet parrot.
twins ______(fight) if they_______(argue).
21 If the Reads ______(get) up early, they ___ ( not be) late for the meeting.