Complete 5-6 SB Vocabulary Unit 4

Another key factor in the process has been the mobile phone.

Dựa vào câu trên, chọn định nghĩa của từ “factor”:

• the cause of an event or situation or something which provides an excuse or explanation

  
  

• a fact or situation that influences the result of something

  
  

• the reason why something, especially something bad, happens

  
  

I think the main cause of this change has been the Internet.

Dựa vào câu trên, chọn định nghĩa của từ “cause”:

• a fact or situation that influences the result of something

  
  

• the cause of an event or situation or something which provides an excuse or explanation

  
  

• the reason why something, especially something bad, happens

  
  

The reason why grass is green was a mystery to the little boy.

Dựa vào câu trên, chọn định nghĩa của từ “reason”:

• the reason why something, especially something bad, happens

  
  

• a fact or situation that influences the result of something

  
  

• the cause of an event or situation or something which provides an excuse or explanation

  
  

Sửa lại lỗi sai trong câu sau:

1. Pollution is a reason of global warming. 

Sửa lại lỗi sai trong câu sau:

2. A major reason which causes this serious problem is pressure on students.

3. The growth of big cities has its human, economic and political reasons.

4. This chart shows the main causes why agricultural land is losing productiveness. 

5. We work hard throughout our student life in order to prepare for the future, although this is not the only cause.

Complete each of these sentences with the correct form of cause, factor or reason.

2. The Internet has been the main _________ of the decline of conventional newspapers. 

3. One __________ why young people watch less television is that they have less time.