Exercise 3: Type in the correct words to complete the conversation. 

simple        heart             bone             treatment             

healthy          replace          parts             consider 

A:  Mom, I have to do this quiz for homework. It's about medicine, and I'm having trouble with some  

Answer of it. Can you help me? 

B:  Well, I'll Answer it. But only if you clean the kitchen afterwards! All right, what do you need to know? 

A:  Um... first question: what is the longest Answer in the human body? 

B:  Oh, that's Answer! It's the femur—you know, in the top of your leg. 

A:  OK, great. Next, if a person needs a new organ, what kind of Answer will he or she receive? 

B:  A transplant. That's when doctors Answer an organ in your body. For example, if your Answer stops pumping blood properly, they can give you a new one. 

A:  OK, and the last one is: what is the best sport for staying Answer? 

B:  Um... I think it's swimming, but I'm sure there will be a lot of opinions about that one. 

Exercise 1: The underlined words in blue below are used in the reading passage on pages 66–67. Complete the sentences with the correct form of the words.  

direction (noun) the general line that something moves along 

prize (noun) something you receive if you win a competition

shadow (noun) a dark shape made when you block light  

appear (v) to become possible to be seen  

believe (v) to think something is true  

guess (v) to give an answer or opinion without being sure it is correct  

missing (adj) not able to be seen or found  

real (adj) not false or fake  

1.Can you Answer which of these two photos is not real ?  

2.When taking a photo, it’s important to consider the Answer the light is coming from.  

3.Your Answer gets longer in the evening when the sun is low in the sky.  

4.The police officer showed me a photo of a Answer person he was looking for.  

5.The photographer waited for a long time before a shark Answer from below the water.  

6.He told me the photo was real, but I didn’t Answer him.  

7.My friend won a $100 Answer in a photography competition. 

Điền các từ ở trong ngoặc vào ô trống

\((process, carbon \) \(dioxide\) \(, oxygen, blood, lung, pump, breathe, heart)\)

1. ______________ noun something natural that happens in the body.

2. ______________ noun two parts indide the top half of your body that you use to breath.

3. ______________ verb to make a liquid move to another placeby pushing it.

4. ______________ noun the part inside your chest that makes blood go around your body.