Do you know why different animals or pests have their special colours? Colours in them seem to be used mainly to protect themselves.
Some birds like eating locusts，but birds cannot easily catch them. Why? It is because locusts change their colours together with the change of the coloursof crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown colour as crops have. Some other pests with different colours from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.
If you study the animal life, you’ll find the main use of colours is protecting themselves. bears, lions and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colours much like the tree.
Have you ever noticed an even more strange act? A kind of fish in the sea can send out a kind of very black liquid when it faces danger. While the liquid spread over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn’t strong at all.
1.From the passage we can learn that locusts .
A. are small animals
B. are easily found by birds
C. are dangerous to their enemies
D. change their colours to protect themselves
2.How can pests with different colours from plants keep out of danger?
A. They run away quickly.
B. Their colours are much like their enemies.
C. They hide themselves in the day and appear at night.
D. They have to move quietly.
3.Bears and lions can keep safe because they .
A. have the colours much like the trees
B. move quickly
C. like brown and grey colours
D. live in forests
4.The kind of fish can live up to now because .
A. it is very big and strong
B. the liquid it sends out can help it escape from its enemies
C. the liquid it sends out can kill its enemies
D. it swims faster than any other fish
5.Which is the best title for this passage?
A. The Change of Colours for Animals and Pests
B. Colours of Different Animals and Pests
C. The Main Use of Colours for Animals and Pests
D. Some Animals and Pests
People talk about two kinds of colours: warm colours and cool colours. The_________colours are red, orange and yellow. These colours give you a happy and_________feeling. People________in cold climates would rather use warm colours_________their homes a warm and comfortable feel. People think that red, for example, represents_________and it is also the colour of heat and strong feelings. Wearing red makes_________easier for you to take action.
The cool colours are green blue and violet. These colours,________warm colours, are_______. Blue makes us feel calm and peaceful. It can also represent sadness. Where there are cool colours,people are usually_________. People who like to spend time___________often prefer blue.
1.A. cool B. warm C. calm D. cold
2.A. sad B. nervous C. worried D. contented
3.A. living B. live C. lived D. lives
4.A. to take B. to give C. to carry D. to get
5.A. peace B. quiet C. power D. calm
6.A. it B. that C. this D. its
7.A. like B. unlike C. dislike D. liking
8.A. relaxed B. relaxing C. worried D. surprised
9.A. stressed B. noisy C. powerful D. quiet
10.A. relaxed B. alone C. contented D. sad
Nobody except Li Ping and Wang Lin_______at school this time yesterday.
A. are B. is C. were D. was
Your son is old enough to______himself.Don’t always do everything for him.
A. wear B. dress
C. put on D. have on
Yellow can remind people a warm day.
A. to B. of
C. on D. about
There’s _____ with your son’s ears. So don’t worry about him.
A. nothing serious B. something serious
C. serious nothing D. anything serious
