Unit 3 Our animal friends一词汇1. helpful adj._ be helpful to sb. 对有好处2. allow v._allow sb. to do sth.After I finish my homework, my mother allows me to watch TV for half an hour. 完成作业后,妈妈允许我看半小时电视。3. anywhere adv. _anywhere 用于否定句、一般疑问句。与之对应的somewhere用于肯定句。1. 我哪儿都找不到我的笔。_2. 今年暑假你会去什么地方吗?_4. apologize v. _