Page 36 - 新思维科学学生用书4 样章

Check your progress

Check your progress

1 Write the word that describes each of the following:

a A frame made of bone that supports our body.

b The bones of the head.

c Something that shows us how another thing looks or works.

d The parts inside our bodies.
e Animals with no backbone.

f The parts of the body that allow our bones to move.

g The hard skin or shell on the outside of the body of some animals.

h An injection that prevents disease.

2 Look at the drawing and answer the questions.
a Write down the number of the muscle

that gets shorter to bend the arm.

b Choose the correct words in the

sentences to explain how the muscle 1 1 1

makes the arm bend upwards.
The muscle contracts / relaxes. The 2 2 2

muscle gets longer / shorter and

pushes / pulls on the arm bone.

c What happens to the other muscle when the arm bends?

3 Look at the picture of a rabbit skeleton. A A C C
a Label parts A, B and C.

b Which part protects the animal’s E E

B
brain? B
c What is the function of part D? F F D
D
d Which part allows the animal to walk and hop?
e Which part is the hip bone?

f The skeleton protects body parts and helps the animal to move.

Describe one other function of the skeleton.

35