Like all vertebrates(脊椎動物), fish have sense organs that tell them what is happening within their environment. The organs enable them to see, hear, smell, taste and touch.
A fish’s eyes differ from those of land vertebrates in several ways. For example, most fish can see to the right and to the left at the same time for the fact that a fish has no neck and so cannot turn its head. Fish also have no eyelids. For land vertebrates, eyelids(眼瞼）help moisten(使?jié)駶? their eyes and protect them from sunlight. A fish’s eyes are kept moist by the flow of water over them. They do not need to be shielded from sunlight because it is seldom extremely direct and bright underwater. Some fish have unusual adaptations of the eye. For example, a flatfish has two eyes on the same side of the head. A flatfish spends most of the time lying on its side on the ocean floor and so needs eyes only on the side that faces upward. The eyes of certain deep-sea fish are at the ends of short structures that stick out from the head. These structures can be raised upward, allowing the fish to see overhead as well as to the side and to the front.
A few kinds of fishes are born blind. They include certain species of catfish that live in total darkness in the waters of caves. Some of these fishes have eyes but no vision(視覺). Others lack eyes completely.
小題1:Why can’t a fish turn its head? (no more than 6 words)
_____________________________________________________________________
小題2:What can prevent land vertebrates’ eyes from sunlight? (no more than 3 words)
_____________________________________________________________________
小題3:Why are the flatfish’s eyes different from other fishes’? (no more than 14 words)
_____________________________________________________________________
小題4:What is the passage mainly about? (no more than 6 words)
__________________________________________________________________

小題1:Because it has no neck.
小題2:Their eyelids.
小題3:Because the flatfish has two eyes on the same side of the head.
小題4:A fish’s sense of sight.

試題分析：
小題1:從第一段的句子：for the fact that a fish has no neck and so cannot turn its head. Because it has no neck.可知魚沒有脖子不能轉(zhuǎn)頭。
小題2:從第二段的句子：eyelids(眼瞼）help moisten(使?jié)駶? their eyes and protect them from sunlight. 可知答案是Their eyelids.
小題3:從第二段的句子：a flatfish has two eyes on the same side of the head.可知答案是Because the flatfish has two eyes on the same side of the head.
小題4:從第二段的句子：A fish’s eyes differ from those of land vertebrates in several ways.A fish’s sense of sight.可知這篇文章主要講的是魚的視覺。
點評：閱讀表達的題目要根據(jù)文章的內(nèi)容進行回答，有的是細節(jié)題，到相關(guān)的段落尋找關(guān)鍵句，得出答案，還有推理題，要根據(jù)相關(guān)的句子找出作者想要表達的意思，考查學生的理解力。
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