1.2 Grammar【课件】-2022-2023学年八年级英语下册同步精品课堂（沪教牛津版）

英语（牛津版） 八年级下册 English Helping those in need Grammar Unit 1 Look and say Using the structure “verbs + to +infinitives” What do they want to do? They want to do some voluntary work during the school holidays. do voluntary work 1 课堂导入 Look and say Using the structure “verbs + to +infinitives” What do they plan to do? They plan to raise money to help people in need. Look and say Using the structure “verbs + to +infinitives” They offer to help the disabled people. offer What do they offer to do? Look and say Using the structure “verbs + to +infinitives” What do they decide to do? They decide to clean the park to make our city more beautiful . Look and say Using the structure “verbs + to +infinitives” What do they hope to do? They hope to hold a book fair to raise money and buy some new books for the library. Some verbs can have other verbs after them. We usually use to before the second verb. We call these second verbs infinitives. Three teenagers offered to do some voluntary work during the school holidays. Cindy wanted to paint a picture of the park near her home. Work out the rule An infinitive is the (base/ -ing/ -ed) form of a verb. Infinitives We can use verbs +to + infinitives in sentences. 2 课堂活动 choose hope offer want decide learn plan wish We often use to + infinitive after these verbs: We can use question words + to + infinitives after decide, know, learn and remember. Do you know how to help disabled children? Things to remember Infinitive （不定式） 定义： 主要行为动词后面的动词都采用了”to+动词原形”的结构（有时可以不带to）。 （注：动词不定式没有人称和数的变化，在句子中不能做谓语。） 用法一： 不定式作宾语是及物动词后带to的不定式，表明意图、希望或决定的内容等。我们常见的动词+ to do sth. 的结构主要是动宾结构。 通常只能接不定式作宾语的动词有：agree (同意); offer (提出); intend， plan (打算，计划); demand， ask (要求); promise (答应); help (帮忙); prepare (准备); decide (决定); refuse (拒绝);dare (敢于); choose (选择); wish，hope，want， expect (希望，想要); fail ;(不能;忘记); pretend (假装); manage (设法); determine (决心)。 为了