七年级上册英语周报第二期答案,我们目前整理分享关于七年级上册英语周报第二期答案及其参考答案,2如需答案 请关注微信公众号：趣找答案/直接访问www.qzda.com(趣找答案)
1、七年级上册英语周报第二期答案
2、双语报答案2022-2023
3、道州玉谭（东阳）学校周报英语28期答案
16．
| A．poisoned B．destruction C．survived D．increased E．especially F．chemicals G．concern H．decline I．occasionally J．sensitive |
More recent research has shown that many kinds of amphibians（两栖动物） are declining or have become extinct．Amphibians are animals，such as frogs，that live partly in water and partly on land．And they have been around for over 350million years．They have （41）survived three mass extinctions，including the extinction of the dinosaurs．Why are they dying out now？
The most serious aspect of amphibian loss，however，goes beyond the amphibians themselves．Scientists are beginning to think about what amphibian （42）decline means for the planet as a whole．If the earth is becoming unlivable for amphibians，is it also becoming unlivable for other kinds of animals and human beings as well？
Scientists now believe that amphibian decline is due to several environmental factors．One of these factors is the （43）destruction of habitat，the natural area where an animal lives．Amphibians are very （44）sensitive to changes in their habitat．If they cannot find the right conditions，they will not lay their eggs．These days，as wild areas are covered with houses，roads，farms，or factories，many kinds of amphibians are no longer laying eggs．
There are a number of other factors in amphibian decline．Pollution is one of them．In many industrial areas，air pollution has （45）poisoned the rain，which then falls on ponds and kills the frogs that live there．In farming areas，the heavy use of （46）chemicals on crops has also killed off amphibians．Another factor is that air pollution has led to （47）increased levels of ultraviolet （UV） light．This endangers amphibians，which seem to be （48）especially sensitive to UV light．
All these reasons for the disappearance of amphibians are also good reasons for more general （49）concern．These factors affect human beings，too． 试题答案
分析 本文介绍了导致哺乳动物日益消失的原因，如：空气污染，栖息地的破坏等．
解答 41．C 42．H 43．B 44．J 45．A 46．F 47．D 48．E 49G
41．C 考查动词．根据"extinctions，including the extinction of the dinosaurs"可知此处需要填动词survived形式，意思是幸存．
42．H 考查动词．从前文描述的内容可以看出主要讲哺乳动物的数量日益减退，decline为下降，减少的意思．
43．B 考查名词．这句话提到了哺乳动物消亡的原因是因为"habitat，the natural area where an animal lives"比如栖息地等的破坏．
44．J 考查形容词．此处是一个固定短语be sensitive to意思是对…敏感．
45．A 考查动词．根据"which then falls on ponds and kills the frogs that live there可知，空气污染使雨含有毒素，这样杀死了很多青蛙．
46．F 考查名词．In farming areas在农业地区，过渡使用的是一些化学药品．chemicals为名词，意思是化学药品．
47．D 考查过去分词．这句话叙述另外一个原因是空气污染导致了紫外线强调的增加．level和increase之间构成被动关系，所以用increased过去分词形式．
48．E 考查副词．此处用副词来修饰短语be sensitive to意思是对…更加敏感．
49G 考查名词．concern为名词，意思是关心，在意．这些导致哺乳动物消失的原因同时也影响了人类．
点评 语法填空题主要是考查对文章句子结构和词汇搭配的用法．通常的考查点有：动词（时态，语态，非谓语形式）；名词（单复数）；形容词和副词（转换）；连词（复合句，并列句）；介词（搭配结构）等．偶尔也会出现逻辑判断题，例如考查代词的指代对象．在平时练习时多注意归纳总结，考试时自然游刃有余．
本学期你校将对本校职业技能类选修课程进行调研，评选出学生心目中“我最喜爱的选修课(My favorite elective course)”。假如你是李越，推荐园艺(gardening)和防身术(self-defense)两门课。请你用英语给评委会写一封100—120词的信，推荐这两门课程，并分别说明推荐理由。
注意：开头和结尾已给出，不计入总词数。
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