(
课件网) Unit 8 Let's communicate! 八年级 人教版2024 上 语法+写作解析 一、语法解析 if引导的条件状语从句 在复合句中作条件状语的句子叫条件状语从句。条件状语从句常用if(如果)来引导。 1.主句和if引导的条件状语从句的位置: if从句既可放在主句前，也可放在主句后。放在主句前时，常用逗号与后面的主句隔开。 Eg: If it snows tomorrow,we will make a snowman. = We will make a snowman if it snows tomorrow. 如果明天下雪，我们将堆雪人。 2.If条件状语从句的时态问题: 遵循“主将从现”原则，即主句为将来时，从句为一般现在时。 Eg: If it rains tomorrow, I will stay at home. 如果明天下雨，我就呆在家里。 注意:(1)当表示客观事实、真理时，主句和if引导的条件状语从句都用一般现在时。 (2)当表示在某种条件下给出的建议或命令、且主句为祈使句时，if引导的条件状语从句常用一般现在时。 (3)当表示在某种条件下可能发生的结果，且主句谓语含有情态动词(如can、may、should等)时，if引导的条件状语从句常用一般现在时。 Eg: If the temperature is below zero, water turns into ice. 如果温度低于零度，水就会变成冰。 If you feel tired, take a rest. 如果你感到累，就休息一下。 You may fall ill if you eat the bad food. 如果你吃变质的食物，你可能会生病。 3.含有if引导的条件状语从句的主从复合句有时可以转换成“祈使句 + and/ or + 陈述句”结构，and表示“那么、就”，or表示“否则、不然”。 Eg: If you are more outgoing, you'll have more friends. = Be more outgoing, and you'll have more friends. 更外向一些，你就会有更多的朋友。 If you don't hurry up, you will miss the bus. = Hurry up, or you will miss the bus. 快点，否则你会错过公交车。 4.if也可以译为“是否”，用来引导宾语从句，时态随实际情况而定。 Eg: I don't know if it will rain tomorrow. 我不知道明天是否下雨。 二、写作解析 话题: 本单元写作主题为“沟通与交流” (一) 常用短语 1.take place发生、进行 2.on May 18th在5月18日 3.share our sweet memories with each other 彼此分享甜蜜的回忆 4.talk about our dreams谈论我们的想法 5.express thanks to ...向...表示感谢 6.give a speech发表讲话 (二)常用句型 1.I'm writing to invite you to join us. 我写信想邀请您加入我们。 2.The party will be held at 7 pm on May 18th in our school hall. 晚会将于5月18日晚上7点在我们学校礼堂举行。 3. During the party, we will share our memories of the past three years. 在晚会上，我们将分享过去三年的回忆。 4.At last, we'll sing songs and take photos together。 最后，我们将一起唱歌、拍照。 5.We are really looking forward to your coming。 我们非常期待您的到来。 (三)范文 Dear Mr. Wu, We are going to have a graduation party. It would be our honor if you could attend and celebrate this important moment with us. The party will take place at 7 pm on May 18th in the school library. At the party, we will share our memories of the past three years. We even have made a video and I believe it will show you something unforgettable. At the same time, we'll talk about our dreams, which can help us have a clear plan about our future. In addition, some of us will even give short speeches to express our sincere thanks to teachers and classmates. At last, we'll sing songs and t ... ...
