Unit 6 Travelling around Asia Grammar 课件2023-2024学年牛津深圳英语七年级上册

Unit 6 Travelling around Asia. Grammar If conditional sentences 一、if “如果”条件状语从句: 1. 主将从现 2. 主情从现 3. 主祈从现 二、unless“除非”条件状语从句,可与if …not转换 Learning goals: Find some if conditional sentences in the article. If you like sightseeing, you will love it. View & Say If you walk along the Bund, you will see many old buildings. If you enjoy history and natural beauty, you will love Yu Garden. If you do, you’ll be late. You’ll be late if you do. if 条件状语从句 从句 主句 主句 从句 1. 结构: if 后的是从句, 剩下部分是主句 2. 用法: 主句用一般将来时, 从句用一般现 在时表将来 eg. If you go to the party, you’ll have a great time. If it rains tomorrow, I’ll stay at home. 如果明天下雨, 我将待在家里。 (1) 主将从现: 如果你参加聚会, 你将玩得愉快。 主句有情态动词(must, can, may)等, 从句用一般现在时 eg. If you want to be thin, you must eat less food. 如果你想变瘦, 你必须少吃东西。 (2) 主情从现: 主句是祈使句, 从句用一般现在时 eg. If you want to pass the exam, stop talking in class. Don’t go out if you don’t finish your homework. 如果你没有完成作业, 就不要外出。 (3) 主祈从现: 如果你想通过考试, 不要在课堂上讲话。 二、unless“除非”条件状语从句(主将从现), 可与 if …not转换 eg. You will be late for the meeting unless you take a taxi there. You will be late for the meeting if you don't take a taxi there. Willam: Mum, I sometimes bring the wrong books Mum: If you check your timetable every night, you will know which books to bring. Peter's good friend, William has some problems in study. So his mother helps him solve the problems. Suppose you are his mother, you can use if-clause to give advice to him. A Help William solve problems to school. 1 William: Mum, I was away from school today. I do not know what homework to do. Mum: If you call your friends, they will tell you what homework to do. 2 William: Mum, I hate getting up. I always feel tired Mum:If you go to bed