using "because":

We can not swim in this part of the river because of highly polluted water.

--->........Because highly polluted water of the river, we can't swim in ..................

using "because of:

1.She can not work hard because she is very old.

-->........Because of being old, she can't work hard...................................

2. He left to school because his life was hard.

Because his life was hard, he left school

Mary looks happy because she has just got good marks

A computer becomes very popular today as it can be used for purposes 

1. If she does not hungry, she'll be late

-> Should she not hungry, she'll be late.

2/ We can't listen to you because of the noise

-> If it weren't/wasn't noisy, we could listen to you. 

3/ She didn't go over her illness as we expected because she stopped using the medicine

-> Had she not stopped using the medicine, she would have gone over her illness as we expected.

I. Combine each pair of sentences, using “Because, Since, As”

1. Mary looks happy because she has just got good marks.

2. A computer can be used for various( thiếu đoạn sau nhé =')

 Question II. Combine each pair of sentences, using “Because, Since, As”

Because the exercise is not easy, i will have to consult my teacher

Chúc em học giỏi

Mary looks happy because/as/since she has just got good marks. 

I will have to consult my teacher the because/as/since exercise is not easy 

1. I am very lucky because I have many good friends.

I’m  lucky enough to have many good friends

2. I am very strong. I can lift this box alone.

I am strong enough to lift this box alone.

3. She is very intelligent. She can get the first price in this exam.

She is intelligent enough to get the first price in this exam.

4. Nam was very experienced. He could finish that work for an hour.

Nam was experienced enough to finish that work for an hour.

5. Lan is old. She can go to school by herself.

Lan is old enough to go to school by herself.

1. I am very lucky because I have many good friends.

I’m lucky enough to have many good friends.

2. I am very strong. I can lift this box alone.

I am strong enough to lift this box alone

3. She is very intelligent. She can get the first price in this exam.

She is intelligent enough to  get the first price in this exam.

4. Nam was very experienced. He could finish that work for an hour.

Nam is experienced enought to finish that work for an hour.

5. Lan is old. She can go to school by herself.

Lan is old enough to go to school by herself

ĐỀ: Rewrite these sentences using ALTHOUGH/THOUGH/DESPITE/IN SPITE OF
1/Because i am sick,l i do not go out 

->Because of  being sick, I do not go out

2/Because the weter is polluted,we can`t swim in that river

->Because of  the polluted water, we can't swim in that river

3/Because nga has had a sore leg,she had difficulty in walking 

->Because of having had a sore leg, Nga had difficulty in walking 

4/Because he behaved badly,he found himself in trouble 

->Because of behaving badly, he found himself in trouble

5/Because it was snowing,we didn`t go out for a walk

->Because of the snow, we didn't go out for a walk

6/Because of his good looks,he is popular with many girls 

->Because he has good looks, he is popular with many girls

7/Because of his serious sickness,he couldn`t come to the class 

->Because he was seriously sick, he couldn't come to the class

8/Because of too much exhaust fume,people have to wear gauze masks in the streets 

->Beccause  there are too much exhaust fume,people have to wear gauze masks in the streets 

9/Because of their good performance,they won the first prize 

->Because  they performed well, they won the first prize

10/Because of your advice,we didn`t use that poisonous chemical

->Because you advised us, we didn't use that poisonous chemical

\(\text{≌₰⇴⩸⨙⩸※◡⨦}\)

1. she can't work hard because she is very old.

............................she can't work hard because of being very old.....................................................

2. He likes her because she is very beautiful.

.....................He likes her because of her beauty...................................................

3. He broke the vase because he was careless.

...................He broke the vase because of being careless..........................................................

 4.He left school because his life was hard.

......................He left school because of his hard life .....................................................

5. I went to bed early because I felt tired.

.....................I went to bed early because of feeling tired..................................................

1. My sister can speak English and French

2. Mai can ride a bike but she can't drive a car.

3. I don't like this book because it's so boring.

4. Although Duy was ill, he went to school.

5. She likes playing badminton so she goes to the gym every day.

Ex1:Rewrite these senteces by using because:

1.Nobody can do this test because of ít difficulty

-> Because this test is difficult, nobody can do it.

2.We spent the whole day in the garden because of lovely weather

-> Because the weather was lovely, we spent the whole day in the garden.

3.He can not go to school today because of hí toothace

-> Because he is toothache, he can't go to school today.

4.Because of having an accident, these students arrrived late

-> Because these students had an accident, they arrived late.

5.She must stay in bed because of her illness

-> Because she is ill, she must stay in bed.

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