Question

根據短文內容，從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。
Two brightly colored butterflies have just flown by. They seems to be exactly alike, but actually one is a little larger than the other.   1  The smaller one has a wingspread of less than three inches and also a black line on its back wings.
At first sight, it is hard to tell them apart. Would you guess from this that they are different-sized butterflies of the same species?  2  If you said yes to either question, you would be wrong, for these look-alikes belong to quite different families.
The larger insect is the monarch butterfly (黑脈金斑蝶). As a baby insect, the monarch feeds on milkweed, which seems to give the monarch a disagreeable taste and smell.   3  Birds that eat butterflies soon recognize the monarch and quickly learn to leave it alone.
  4  Birds would find this insect tasty, but because it looks like the monarch, birds keep away from it. The viceroy’s similarity to the monarch gives it some protection from its enemies and helps it survive.
There are other pairs of look-alike butterflies, bees and moths. In each case, one either has a disagreeable taste or smell, or can give a painful sting (叮咬). The larger is called the model.  5  

A．The smaller insect is the viceroy (副王峽蝶), which feeds on the leaves of trees.

B．The larger insect has a wingspread (翼長) of up to four inches.

C．The bright coloring of the monarch acts as a warning sign to its enemy.

D．Birds protect their babies from eating such dangerous enemies.

E. The insect that imitates this model for protection is called the mimic（保護色）.
F. Or that they are different species of butterflies but close relatives belonging to the same family?
G. Do you like this kind of special species?

Answer 1

【小題1】B
【小題2】F
【小題3】C
【小題4】A
【小題5】E

解析試題分析：本文介紹了各種蝴蝶為了保護自己所擁有的不同的保護色。
【小題1】B 根據下一句The smaller one has a wingspread of less than…講述的小一點的蝴蝶的情況，說明本句講述的應該是大一點的蝴蝶的情況，故B符合上下文。
【小題2】F 根據上一句Would you guess from this that they are different-sized butterflies of the same species?他們是同一種類的不同尺寸，還是不同種類的近親關系。故F項符合上下文結構。
【小題3】C 根據下一句Birds that eat butterflies soon recognize the monarch and quickly learn to leave it alone.說明這種明亮的顏色是對敵人的一種警告，故C項正確。
【小題4】A 根據上一段The larger insect is the monarch butterfly說明本段應該講述的是smaller butterfly，故A正確。
【小題5】E 這句話是一個歸納總結的話，所有的蝴蝶的顏色都屬于保護自己的保護色。故E項符合上下文。
考點：考查自然知識類短文閱讀
點評：此類文章重在把握上下文之間的邏輯關系，通過前后的意思連貫性及細致性用心的答題，定能完成的很好。