Unit1 Period 3 Discovering Useful Structures-【大单元教学】高中英语同步备课系列（人教版2019必修第三册）

Unit 1　FESTIVALS AND CELEBRATIONS Period 3 Discovering Useful Structures 学案 Activity 1 Presentation：Recognise the target structure  1 Read the sentences below and discuss the functions and meanings of the italicised -ing form. Find more examples from the unit. · These lanterns are amazing. · During the Mid-Autumn Festival in China, families gather to admire the shining moon and enjoy delicious mooncakes. · Families celebrating the Lunar New Year can enjoy exciting dragon dances and carnivals together. [SUMMARY] 一、动词-ing形式作表语：动名词作表语和现在分词作表语。 1. 动名词作表语：抽象的一般性的行为，说明主语的内容，与主语常是同一概念。表语和主语常可互换位置。 eg Their duty is cleaning the windows every day. 【注意】 动名词作表语时与进行时态中的现在分词形式相同，但意思不一样。 动名词作表语：主语的性质或情况； 现在分词作表语：主语正在进行的动作或所处的状态。 eg Our work is watering these trees carefully.(表示主语的性质或情况，不是具体动作) We are watering these trees carefully.(现在分词帮助构成进行时,表示主语正在进行的动作) 2. 现在分词作表语相当于形容词，用来说明主语所做的动作的性质，现在分词后一般不再接任何成分。常见的用作形容词的现在分词有 surprising, interesting, amusing, boring, disappointing, exciting, pleasing等。 eg The outcome of the march was disappointing for the families involved. The atmosphere here is surprising. The report is very disturbing. 二、动词-ing形式作定语：动名词作定语和现在分词作定语。 1. 动名词作定语表示被修饰的名词的作用和用途。 eg Students are not permitted to speak aloud in the reading room. The old man needs to take some sleeping pills to sleep. 2. 现在分词作定语表示它所修饰的名词的动作或状态，与所修饰名词之间是逻辑上的主谓关系，相当于定语从句。 1) 单个现在分词作定语时，多放在所修饰名词前。 eg The sleeping boy is Tom. 2) 现在分词短语作定语时，常放在所修饰名词后，可转换成定语从句。 eg The girl decorating the room is my cousin. =The girl who is decorating the room is my cousin. Activity 2 Practice：Using the -ing form to describe festival activities. 1. Read the following messages posted by some exchange students on an Internet forum. Underline the -ing form used as the attribute or the predicative. Today 9:05 am Sunnyli Discussion: Which festival is the best? Rio Carnival! I spent a really fun day there with my friends. It was great fun walking along