广州版初二英语下Unit7讲义.docVIP

初二英语讲义 一． 教学衔接 上次习题讲解 抽查单词与词组 二． 教学内容 重点词汇辨析 get old 变老，年纪大了 go wrong 出毛病，出问题 get 与 go 都是系动词，后接形容词作表语 get tired get sick get warm get angry be connected to 与...连接 可写作 be connected with hear about 听说 I have learned a lot about you. hear from 收到...的来信 很久以前 a long time ago 老了 get old 出错 go wrong 生某人的气 be angry with sb 失忆 lose one’s memory 尝试做某事 try doing sth 与…相联系 be connected to 听说 hear about/ of 给…下指令，指挥 give instructions to 剩下的 the rest of 神经系统 nervous system 储存信息 store information 与…靠近 be close to 短时间 a short time 个人经历personal experiences 在六十分钟内 in 60 minutes 回想起做某事 recall doing sth in one’s 90s/nineties （某人）九十多岁时 in the 1870s 在19世纪70年代 remember (not)to do sth 记得（不）做某事 remember doing sth 记得做过某事 look up 向上看，抬头看，查字典 refer to 参考，查阅；涉及，指的是 倍数的表达方式 1、倍数+ as +形容词或副词的原级+ as +其他 倍数+as + many +可数名词复数 + as They are seven times as many people as I expected． 倍数+ as + much + 不可数名词+ as There are five times as much coffee in this glass in that one. 2、 倍数+ 形容词或副词的比较级+ than + 其他 The hall if five times bigger than our classroom. 语法 关于if引导的条件状语从句与宾语从句 当if表示“如果”，引导条件状语从句时 1）当谈及可能发生的行为动作，以及其可能产生的结果时，就要用“主将从现” Eg: If (it is) possible, I’ll meet you at the railwaby station. 2）当表示客观事实、结果时，主句和从句都用一般现在时。 Eg: If you heat ice, it turns into water. 3）当if 引导的条件状语从句时，主句可以使用祈使句，或情态动词（如can, should, may, must等）来代替一般将来时 Eg: If you want to lose weight, you should take more exercise. = Take more exercise if you want to lose weight. 当if表示“是否”，引导宾语从句时 1） 当主句是一般现在时，从句根据实际情况用相应的时态 Eg: I wonder if you will attend the meeting tomorrow. 2） 当主句是一般过去时，从句应用过去相应的时态 Eg: I wondered if you would attend the meeting the next/ following day. 3） 当从句是客观真理时，从句永远用一般现在时 Eg: My mother told me that ice turns into water if you heat it. 用whether而不用if 表示“是否”，引导宾语从句的情况 当宾语从句中出现“or not”时 Eg: I don’t know whether or not I should ask him about i