精选优质文档-倾情为你奉上Unit 11. concern v. concern oneself with/about sth. 对感兴趣He didnt concern himself with details.2. behave v. 表现He behaved like a true gentleman.He behaved as if nothing had happened.He behaved badly towards their guests. behave (oneself) 表现得体，有礼貌I want you to behave yourselves while I am away.She doesnt know how to behave in public.3. shade Un. 阴凉处，树荫 +ofWe sat down in the shade of the wall.The trees provide shade for the animals in the summer.4. wor
