Do you know why different animals or pests(害蟲) have their special colors? Colors in them seem to be mainly used to 1 themselves.
Some birds like eating locusts(蝗蟲), but birds cannot 2catch them. Why? It is because locusts change their3 with the change of the colors of crops. When crops are green, locusts look 4. But as the harvest time comes, locusts change into the same brown color 5 crops have. Some other pests whose colors are 6 plants are easily found and eaten by7. So they have to hide themselves for lives and appear only8.
If you 9animals’ life, you’ll find the main use of colors is to protect 10. Bears, lions and other animals11 quietly through forests. They cannot be easily seen by hunters 12their colors are much like the trees.
Colors are useful not only on the land, but also in the 13. A kind of fish can 14液體) when they face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is 15 they can live safely though they are not strong at all. So colors are really useful to animals.

  1. 1.
    1. A.
      show
    2. B.
      protect
    3. C.
      kill
    4. D.
      interest
  2. 2.
    1. A.
      easily
    2. B.
      freely
    3. C.
      safely
    4. D.
      differently
  3. 3.
    1. A.
      sizes
    2. B.
      smells
    3. C.
      colors
    4. D.
      shapes
  4. 4.
    1. A.
      yellow
    2. B.
      red
    3. C.
      black
    4. D.
      green
  5. 5.
    1. A.
      so
    2. B.
      as
    3. C.
      like
    4. D.
      with
  6. 6.
    1. A.
      different from
    2. B.
      same as
    3. C.
      similar to
    4. D.
      opposite with
  7. 7.
    1. A.
      other
    2. B.
      others
    3. C.
      the others
    4. D.
      another
  8. 8.
    1. A.
      in the morning
    2. B.
      at noon
    3. C.
      at night
    4. D.
      in the daytime
  9. 9.
    1. A.
      study
    2. B.
      write
    3. C.
      draw
    4. D.
      work
  10. 10.
    1. A.
      them
    2. B.
      themselves
    3. C.
      it
    4. D.
      itself
  11. 11.
    1. A.
      run
    2. B.
      fight
    3. C.
      move
    4. D.
      eat
  12. 12.
    1. A.
      because
    2. B.
      so
    3. C.
      and
    4. D.
      although
  13. 13.
    1. A.
      forests
    2. B.
      desert
    3. C.
      sea
    4. D.
      mountains
  14. 14.
    1. A.
      keep out
    2. B.
      come out
    3. C.
      look out
    4. D.
      give out
  15. 15.
    1. A.
      why
    2. B.
      when
    3. C.
      how
    4. D.
      where
BACDB ABCAB CACDB
試題分析:這篇短文主要介紹了動物的一種自我保護(hù)方法,他們通過改變自身顏色來適應(yīng)周圍環(huán)境,不讓敵人發(fā)現(xiàn)自己。
1.聯(lián)系下文描述,可知此處指的是他們的顏色主要是用來保護(hù)他們自己,故選B,保護(hù)。
2.副詞辨析。A. 容易地;B.自由地,免費(fèi)地;C. 安全地;D. 不同地。聯(lián)系下文描述,可知此處指的是鳥類不能輕易地捉住他們,故選A。
3.聯(lián)系下文with the change of the colors of crops.描述,可知此處指的是隨著莊稼物的顏色改變他們的顏色,故選C,顏色。
4.聯(lián)系前文When crops are green, 描述,可知此處指的是他們看起來是綠色的,故選D,綠色的。
5.詞義辨析。A. 因此;B. 作為,如同;C.和……一樣;D.帶有,伴隨。結(jié)合語境可知此處指的是變成和莊稼一樣的顏色。選項C是介詞,不能引導(dǎo)從句,故選B。
6.短語辨析。A. 與……不同,不同于;B.和……一樣;C. 與……相似;D. 搭配錯誤,opposite一般和to搭配使用,表示與……相反。結(jié)合語境可知此處指的是顏色不同于莊稼的害蟲,故選A,不同于。
7.詞義辨析。A. 另外的,其它的;B. 其它人;C. 其余的;D. 多個中的另一個。結(jié)合語境可知此處指代的是其它動物,故選B。
8.結(jié)合語境可知此處指的是他們只在夜間出現(xiàn),故選C,在夜間。
9.動詞辨析。A. 學(xué)習(xí),研究;B. 寫作;C. 繪畫;D.工作,運(yùn)作。句意:如果你研究動物們的生活,故選A。
10.結(jié)合語境可知此處指的是顏色的主要作用是保護(hù)他們自己,故選B,他們自己。
11.動詞辨析。A.奔跑;B. 打架,戰(zhàn)斗;C. 移動,感動;D.吃。結(jié)合語境可知此處指的是這些動物在森林里面靜靜地移動,故選C。
12.連詞辨析。A.因為;B. 因此;C. 和,并且;D. 雖然,盡管。句意:因為他們的顏色和數(shù)目非常一樣,他們不能輕易地被獵人發(fā)現(xiàn)。故選A。
13.聯(lián)系后一句描述,可知此處指的是在海洋當(dāng)中。故選C,海洋。
14.短語辨析。A. 阻止進(jìn)入;B.出現(xiàn),出版;C.注意,照料;D. 分發(fā),發(fā)表。結(jié)合語境可知此處指的是一種魚能噴一種黑色的液體。故選D。
15.疑問詞辨析。A. 為什么;B. 什么時候;C. 如何,怎樣;D. 在哪兒。結(jié)合語境可知此處指的是那就是為什么他們一點(diǎn)也不強(qiáng)壯卻能安全地生活的原因。故選B。
考點(diǎn):關(guān)于動物自我保護(hù)的說明文
點(diǎn)評:這篇短文內(nèi)容比較簡單,理解不難。各小題與上下文聯(lián)系比較緊密,答題中一定要注意聯(lián)系上下文。答完后多讀幾遍,看看是否符合邏輯,適當(dāng)修改。個別小題可以當(dāng)作單獨(dú)的詞義辨析題來做,先區(qū)分詞義,結(jié)合語境選出最能使語句通順的答案。
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