4、阳变得越来越低,但他的影子变得越来越长。当太阳越来越低的时候,为什么我的影子越来越长?lowerlongeroldertallerThinkandDiscuss:1.DoyouagreewithOldTree?Why?知识小贴士:早上黎明时影子最长,然后逐渐变短,到正午时影子最短,一般在人的正下方,午后逐渐变长,傍晚时影子最长.光源和物体(阻挡物)之间的位移的变化这样光被不同角度挡住就发生了变化!ThinkandDiscuss:2.CanyouanswerLittleDuck’squestion?What’syouranswer?Theangleis between the
5、 sun and【’æŋgl】角度the people.The sun is lower,the angle issmaller,the shadow is getting longer.1、翻译下列词句。lowerandlowerlongerandlonger.olderandsmarterclearerandbrighter.2、写出下列单词的ing形式getgrowbecome.3、选择最佳答案。1)LittleDuckisthesundown.A.watching,goB.watch,goesC.watching,goes2)Thesundowneveryday.A