Unit 2 Lessons in Life Grammar 课件-2022-2023学年高二下学期英语外研版（2019）选择性必修四册

Unit 3 Period 2 Grammar 课 堂 学 习 adverbial clauses 1 Look at the sentences from the reading passage and answer the questions. a You can only imagine how travellers felt when they saw the oasis of Dunhuang ahead of them. b If you look up, you can see the paintings and other artworks... c ... Dunhuang was not as prosperous as it used to be. d Given that the theme of the Expo was to promote cultural exchange ..., Dunbuang was the ideal place. 1 Classify the adverbial clauses in the sentences. condition comparison reason time 2 What other types of adverbial clause can you think of ? Give some examples. Place: Generally, air will be heavily polluted where there are factories. Purpose: The teacher raised his voice so that the students in the back could hear him. Concession: Although we have grown up, our parents still treat us as young children. Manner: He looks as if he had been hit by lighting. Result: I’ve had so many falls that I am black and blue all over. b c d a Now look for more sentences with adverbial clauses in the reading passage. 1. Come a little bit closer so that you can get a better view. 2. The Apsaras are depicted sailing in the bright blue sky, with their scarves flying, as if they are about to fly down to meet us. 3. The scrolls are so detailed that they describe the vast range of goods that were imported and exported from Dunhuang, such as ceramics, medicine, perfumes and fruit, to name just a few. 4. Gradually, it faded from memory, even though it was once such a green city. 【语法讲解】 状语从句起副词作用，用来修饰句中谓语动词、非谓语动词、定语、状语或整个句子。状语从句一般由从属连词引导，也可由连词词组引导。位于句首或句中时常用逗号与主句隔开，位于句尾时可以不用逗号。根据其作用可分为时间、地点、原因、条件、让步、结果、方式、目的和比较等状语从句。 when/ while/ as/ since/ before/ after/ until/ till/ as soon as/ ... the second/ the minute/ the instant/ every time/... immediately/ instantly/ directly... where/ wherever because/ as/ since/ in that/ now that... so that/ so...that/ such...that... if/ unless/ in case/ on condition that/ supposin