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精英家教網 > 初中英語 > 題目詳情

   Do you know why different animals or pests(害蟲)have different colors? The colors are mainly used to protect themselves.

  Some birds like eating locusts(蝗蟲),but birds cannot easily catch them.Why? It is because locusts change their colors together with the change of the colors of the crops. When the crops are green,locusts look green.But as the harvest time comes,locus change to the same brown colors as the crops have.Some pests with different colors from the plants easily found and eaten by others.So they have to hide themselves,appearing only at night.

Some animals move quietly through forests.They cannot be easily seen by hunters(獵人).This is because they have the colors much like the trees’.

    A kind of fish in the sea can send out a kind of black liquid(液體)when it faces danger.While the liquid spreads over,the fish’s enemies cannot find it.And it immediately swims away.So it has lived up to now though it is not 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 for their enemies            D.can’t be easily caught by birds

2.How can pests with different colors from the plants keep out of danger?

    A.They run away quickly.

    B.They have the colors much like their enemies’.

    C.They hide themselves in the daytime and appear at night.

    D.They have to move quietly.

3.Some animals Can keep safe in the forest because________.

    A.they have the colors much like the trees’

    B.they move quietly

    C.they like brown and grey colors

    D.they live in the forest

4.Why can the kind offish in Paragraph4 live up to now(直到現在)?

    A.Because it is very large and strong.

    B.Because the liquid it sends out can help it escape when in danger.

    C.Because the liquid it sends out call kill its enemies.

    D.Because it swims very fast and Call escape very quickly.

5.Which is the best title for this passage?

    A.The Change of Colors.

    B.Colors of Different Animals and Pests.

    C.The Main Use of Colors with Animals and Pests.

    D.Some Animals and Pests.

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