精选优质文档-倾情为你奉上Unit 1语法：虚拟语气 If +一般过去时句子，主语+would +动词原形。知识点：1 . hundred 百 ， thousand 千 ,million 百万, billion 十亿 前面有确切数字时不加s不加of 如 two hundred 前面没有确切数字时加s加of 如 hundreds of 2 .worry about = be worried about为 担心3. else 修饰疑问词、不定代词、不定副词要后置。 如：what else ,something else4. enjoy oneself 玩的高兴 enjoy doing 喜欢做某事5. help sb. (to)do sth. Help sb. with sth. 帮助某人做某事6. too to ，not enough to do. sothat7. be afraid to do sth. be afraid of doing/n. 害怕做某事
