阳光英语周刊八年级上册第十六期,我们目前整理分享关于阳光英语周刊八年级上册第十六期及其参考答案,2如需答案 请关注微信公众号：考不凡/直接访问www.kaobufan.com(考不凡)
1、阳光英语周刊八年级上册第十六期
2、英语双语报w版20222023
3、2022-2023英语周报答案八年级下册
6．Sharks have lived in the oceans for over 450million years．There are now about 360species of sharks，whose size，behavior，and other characteristics differ widely．
Sharks range in size from the 0.1meter long dwarf-dog shark to the 18-metre long whale shark-the world's biggest fish．The whale shark，like two other large shark species-the basking shark and the megamouth shark-are harmless to people because they feed on plants and small aquatic animals．
Sharks have extremely sensitive sense organs．Some sharks can detect the scent（气味） of decaying fish or blood even when it is diluted（稀释） to only one part per million parts of seawater．They can probably hear underwater sounds that originate as far as 3kilometers away and can tell the direction from which underwater sounds are coming．
Sharks are key predators（肉食动物） in the world's oceans，helping control the numbers of many other ocean predators．Without sharks，the oceans would be overcrowded with dead and dying fish．
Every year，we catch and kill over 100million sharks，mostly for food and for their fins．Dried shark fins are used to make shark fin soup，which makes a profit for the sellers．Other sharks are killed for sport and out of fear．Sharks are vulnerable to overfishing because it takes most species 10to 15years to begin reproducing and they produce only a few offspring．
Influenced by movies and popular novels，most people see sharks as people-eating monsters．This is far from the truth．Every year，a few types of sharks injure about 100people worldwide and kill about 25．Most attacks are by great white sharks，which often feed on sea lions and other marine mammals．They sometimes mistake human swimmers for their normal prey，especially if they are wearing black wet suits．
If you are a typical ocean-goer，your chances of being killed by an unprovoked （无缘无故的） attack by a shark are about 1in 100million．You are more likely to be killed by a pig than by a shark．
Sharks help save human lives．In addition to providing people with food，they are helping us learn how to fight cancer，bacteria and viruses．Sharks are very healthy and have aging processes similar to ours．Their highly effective immune system allows wounds to heal quickly without becoming infected，and their blood is being studied in connection with AIDS research．
Sharks are among the few animals in the world that almost never get cancer and eye cataracts．Understanding why can help us improve human health．Chemicals extracted from shark cartilage（软骨） have killed cancerous tumors in laboratory animals，and these chemicals may someday help prolong our life．
Sharks are needed in the world's ocean ecosystems．Although they don't need us，we need them．We are much more dangerous to sharks than they are to us．For every shark that bites a person，we kill one million sharks．
18．Which statement best expresses the main idea of the article？B
A．There are many different species of sharks，but only a few of them are dangerous to humans．
B．Sharks are important to the ocean ecosystem and they are a valuable resource for humans．
C．Although some sharks are dangerous to humans，they can help save human lives．
D．Sharks always eat small fishes and they are an essential part of the world's oceans．
19．Which question is NOT answered in the article？A
A．How long does a shark live？
B．How many people are killed by sharks each year？
C．Why are sharks important in medical research？
D．What do humans kill sharks for？
20．It can be inferred from the passage thatA．
A．Movies have given people the wrong impression of sharks．
B．Most sharks are dangerous to humans．
C．Sharks will attack anyone who is wearing black．
D．It is very likely that ocean-goers will be killed by a shark． 试题答案
分析 本文介绍了鲨鱼的有关信息，如鲨鱼的饮食，繁衍以及鲨鱼所处的现状．警告人们要注意保护鲨鱼，因为很多鲨鱼都处于灭绝的危险之中．
解答 18-20 BAA
18．答案：B 主旨大意题．根据最后一段第一句Sharks are needed in the world's ocean ecosystems．根据倒数第三段第一句 Sharks help save human lives．
19．答案：A细节理解题．根据第六段第三句Every year，a few types of sharks injure about 100 people worldwide and kill about 25．每年几类鲨鱼在世界范围内伤害约100人，杀死约25人．排除B；根据倒数第三段第一、二句Sharks help save human lives．In addition to providing people with food，they are helping us learn how to fight cancer，bacteria and viruses．鲨鱼能救人的命．他们正在帮助我们学习如何对抗癌症、细菌和病毒可排除C；根据第五段第一句Every year，we catch and kill over 100 million sharks，mostly for food and for their fins．主要用于食物和为了它们的鳍．可排除D．故选A．
20．答案：A 细节理解题．从第三段的句子：Influenced by movies and popular novels，most people see sharks as people-eating monsters．可知是电影给了人们对鲨鱼的错误的观点．选A．
点评 做阅读时经常犯错的主要原因是，仅凭读过文章后残留在脑海中的一丝印象来勾选答案，这样便很容易掉入出题人故意设布下的题目陷阱．所谓阅读理解，对于题目的理解一定要忠实于原文，因此，每一道题都应该与原文作全面的对比与核查，再得出答案．也就是说，阅读理解的每一道题目，在原文都应该有明确的出处，我们把这一出处叫做原文相关句，（1）排除与原文相关句主题不一致的选项（2）排除与原文相关句态度相反的选项 （3）排除用于过于极端或负面的选项（4）注意结合文章主旨和主题去排除．
David asked his nephew to ______ his bag while he headed for a drink at the airport.
A. lose interest in B. keep an eye on
C. look away from D. keep in touch with
