1. Unit 2 Colours
Grammar (2)

2. Lead-in Is it more interesting than the first season?
Will we see more stars in it?
Do we have time to watch it now?
Can we feel the love of family?

3. Can we feel the love of family?
Do we have time to watch it now?
Is it more interesting than the first season?
Will we see more stars in it?
Millie wonders if/whether we can feel the love of family.
Millie wonders if/whether it is more interesting than the first season.
Millie wonders if/whether we have time to watch it now.
Millie wonders if/whether we will see more stars in it.

4. __________ Is it more interesting than the first season?
Will we see more stars in it?
Do we have time to watch the program now?
Can we feel the love of family?
Yes/no questions
Millie wonders
if/whether it is more interesting than the first season.
if/whether we will see more stars in it.
if/whether we have time to watch it now.
if/whether we can feel the love of family.
__________
S+V+if/whether +a statement.
Object clauses introduced by if or whether

5. Object clauses introduced by if or whether
We use if or whether to introduce an object clause that expresses a yes/no question.
Such an object clause often follows verbs such as ask, see, wonder and find out.
The word order in the clause should be the same as that in a statement.
e.g.
You may wonder if/whether colours influence our moods.
Sandy asks if/whether orange can cheer her up.

6. It is easy to understand the grammar.
Is it easy to understand the grammar?
( I want to know )
It is easy to understand the grammar.
I want to know
it is easy to understand the grammar.
if/whether

7. Practice Problems about shopping
if/whether she should choose the red dress
if/whether white clothes suit her
if/whether the sports bag is made of cotton

8. if/whether the green T-shirt matches his trousers.
stay at home instead of going
shopping with my classmates?
if/whether he should stay at home instead of going shopping with his classmates.

9. Help Daniel complete his email using that, if or whether.
often
that
if/whether
if/whether
that
that
if/whether

10. Help Daniel write a note for his dad.
(that) Dad knows a lot about colours
if/whether red is just the colour of heat and power
if/whether yellow was once the colour of the rulers in ancient China
if/whether the rulers in ancient Europe liked to wear purple
if/whether all the doctors in the world wear white uniforms

11. In these cases, we can only use whether instead of if.
Extension
In these cases, we can only use whether instead of if.
1.在介词后面：
We are worried about whether it will rain tomorrow.
2.在动词不定式前：
He can’t decide whether to go to Canada.

12. 3.当与or或or not连用时:
I don’t know whether he’s free or not.
She asks me whether I am from Yancheng or Nanjing.
4.宾语从句提前时：
Whether this is true or not, I can’t say.

13. √ √ Exercises Choose the right answer.
1. I haven’t decide ____ I’ll go out or stay at home.
A. if B. when
C. why D. whether
2. I want to know ___ you love English.
A. that B. what
C. if D. who √ √

14. √ √ 3. I wonder ____ our teacher will come to my birthday party.
A. whether B. why
C. where D. that
4. I’d like to know ________ or not.
A. whether will he come
B. whether has he come
C. whether he will come
D. that he will come √ √

15. Fill in the blanks with if or whether.
1. Uncle John came up to see _________ there was anything wrong with the computer.
2. The shopkeeper asked my father ________ or not he wanted to choose a big Christmas tree.
3. I don’t know __________ to go or stay?
4. _______ time runs out, what should we do?
5. ________ they will ever become future Olympic champions, only time will tell.
if/whether
whether
whether If
Whether

16. Homework
Remember how to use object clauses introduced by ’if’ or ‘whether’.
Finish the relevant exercises.
Preview Integrated skills.

17. Thank you!