分析 短文介紹了皮膚包括真皮、表皮和皮膚毛孔,人手指上的線條被稱為指紋,并且所有人的指紋都是不同的,指紋可以幫助警察破案等.
解答 答案:71.C 細節(jié)理解題.根據(jù)倒數(shù)第三段句子The lines form a pattern.That is your fingerprint.線條形成圖案,那是你的指紋.可知只有第三個圖有線條圖案.故選C.
72.B 細節(jié)理解題.根據(jù)三、四、五段句子•Everyone has a dermis.This is the inner layer (內(nèi)層) of skin.It is alive.每個人都有真皮.這是內(nèi)層皮膚.它是活的.•Everyone has an epidermis.This is the part of the skin that you see.It is made up of dead cells.每個人都有表皮,這是你看到的皮膚的一部分,它是由死細胞組成的.
•Everyone has pores in his or her skin.Pores are tiny openings in the skin.每個人的皮膚都有毛孔,毛孔是皮膚的微小開口.可知只有第二個圖符合描述.故選B.
73.B 細節(jié)理解題.根據(jù)第五段句子Leaving the body from pores,sweat(汗) helps to cool the body when the body becomes too hot.當身體變得太熱時,汗水離開身體的毛孔,有助于冷卻身體,可知汗從毛孔里出來.故選B.
74.A 細節(jié)理解題.根據(jù)最后一段句子Imagine that a thief leaves fingerprints on a window.Later,the police find the fingerprints.They fingerprint the person they think is the thief.If the prints match,the police have their thief.想象一下,一個小偷在窗戶上留下指紋,后來警察發(fā)現(xiàn)了指紋,他們認為是小偷的指紋,如果指紋相符,警察就找到了小偷.可知指紋可以幫助警察工作.故選A.
75.C 細節(jié)判斷題.根據(jù)第一段第一行句子The Chinese were the first to use fingerprints to identify(識別) people.They saw that fingerprints were different.中國人是第一個使用指紋識別人的.他們看到的指紋都是不同的.和倒數(shù)第二段第二行句子But no two people have exactly the same pattern.Only you have the pattern on your finger.但沒有兩個人具有完全相同的圖案.你的手指上的圖案只屬于你.可知所有人的指紋都是不同的.故選C.
點評 在通讀全文的基礎上,根據(jù)全文大意,展開邏輯思維,瞻前顧后,認真觀察選項,仔細推敲,確定最佳答案.
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