牛津译林版（2019）选择性必修 第一册Unit 1 Food matters Grammar and usage导学案（无答案）

Period II Grammar and usage
To-infinitives as subjects and predicatives
课时目标
主题语境：人与社会
主题群：社会与文化
1．在具体的表达中，能正确判断动词不定式是作主语还是表语。
子主题：饮食文化
语篇类型：博客文章、练习
2．通过练习，掌握动词不定式作主语和表语的相关知识点。
文本分析：
3．能正确使用目标语法写一封感谢信。
重点难点
重点：
在具体的表达中，能正确判断动词不定式是作主语还是表语。
［What］本节课围绕主题语境设计了以下活动：首先，阅读一篇关于外出就餐和在家做饭的博客文章，找出语篇中动词不定式作主语和表语的句子，学习动词不定式作主语和表语的相关语法知识点；然后，通过一系列习题和延伸学习，让学生在适当的练习和具体语境中巩固、内化语法知识点。
难点：
能正确使用目标语法写一封感谢信。
［Why］在语篇中学习动词不定式作主语和表语的用法，学习如何写一封感谢信，学习和了解饮食文化，获得对饮食文化的新认识，提高文化意识和思维品质。
教学准备
教师准备：
动词不定式作主语和表语的相关习题及阅读文本。
学生准备：
复习已学的动词不定式的用法，预习本课相关内容。
［How］本节课的阅读文本是一篇博客文章，文本中的句子使用了动词不定式结构。通过让学生关注文本中动词不定式作主语和表语的用法来归纳和学习相应的语法知识点，然后通过大量的习题进行巩固。创设“写感谢信”和“当小老师”的情境活动，把知识内化，达到学以致用的
教学过程
②The preparation of home-cooked meals is easy and enjoyable. (subject)
Step I 学习理解
活动一：推测与总结
1.What is to-infinitives
③Her dream is that she will open a restaurant someday.(predicative)
Suggested answer:
动词不定式就是英语中动词的“to do”形式，是所谓的动词非谓语形式之一。
④We will put the potatoes in the pot first in order that they will be cooked quickly. (adverbial of purpose)
2. Exploring the rules.
⑤I consider the Soup of the Day as the best option on the menu.(object complement)
Ask students to read the blog entry. Have them find the sentences that use to-infinitives as subjects or predicatives and fill in the table below.The first ones have been done for them.
Suggested answers:
To-infinitives
To eat out was also a social activity,...
①The next dish to be prepared by the cook is KungPao Chicken.
as subjects
To-infinitives
..., my first thought at mealtimes was to
②To prepare home-cooked meals is easy and enjoyable./It is easy and enjoyable to prepare home-cooked meals.
as predicatives
eat at a restaurant.
③Her dream is to open a restaurant some day.
Suggested answers:
④We will put the potatoes in the pot first (in order)to cook them quickly.
To-infinitives as subjects:
⑤I consider the Soup of the Day to be the best option on the menu.
...it was not that difficult to make a simple and tasty dish.
To-infinitives as predicatives:
My plan is to invite my friends over at the weekend...
【设计意图】通过用动词不定式改写句子，初次浅层次地运用语法知识。
3.Working out the rules.
(2)Ask students to complete the article with the correct forms of the verbs in the brackets.
·When the to-infinitive is used as a subject,we usually use the preparatory subject ①at the beginning of the sentence.
·The to-in教学过程
②The preparation of home-cooked meals is easy andenjoyable. (subject)
Step I 学习理解
活动一：推测与总结
1.What is to-infinitives
③Her dream is that she will open a restaurant someday.(predicative)
Suggested answer:
动词不定式就是英语中动词的“todo”形式，是所谓的动词非谓语形式之一。
④We will put the potatoes in the pot first in orderthat they will be cooked quickly. (adverbial of purpose)
2. Exploring the rules.
⑤I consider the Soup of the Day as the best option onthe menu.(object complement)
Ask students to read the blog entry. Have them findthe sentences that use to-infinitives as subjects orpredicatives and fill in the table below.The first ones havebeen done for them.
Suggested answers:
To-infinitives
To eat out was also a social activity,...
①The next dish to be prepared by the cook is KungPao Chicken.
as subjects
To-infinitives
..., my first thought at mealtimes was to
②To prepare home-cooked meals is easy and enjoyable./It is easy and enjoyable to prepare home-cooked meals.
as predicatives
eat at a restaurant.
③Her dream is to open a restaurant some day.
Suggested answers:
④We will put the potatoes in the pot first (in order)to cook them quickly.
To-infinitives as subjects:
⑤I consider the Soup of the Day to be the best option on the menu.
...it was not that difficult to make a simple and tasty dish.
To-infinitives as predicatives:
My plan is to invite my friends over at the weekend...
【设计意图】通过用动词不定式改写句子，初次浅层次地运用语法知识。
3.Working out the rules.
(2)Ask students to complete the article with the correct forms of the verbs in the brackets.
·When the to-infinitive is used as a subject,we usually use the preparatory subject ①______________(at the beginning of the sentence.
·The to-infinitive can also be used as a predicative. It usually comes after the verb ②______________
Suggested answers:
①it
②be
【设计意图】通过阅读与主题相关的文本并总结语法知识点，提高学生在既定的语境中理解语法知识点的能力。
活动二：获取与梳理
Applying the rules.
(1)Ask students to rewrite the following sentences using to-infinitives according to the requirements in the brackets.
①The next dish that the cook will prepare is KungPao Chicken,(attributive).
As long as you are not afraid of heights,you will be impressed by Sky Buffet,the latest restaurant in the city centre. ①______________(locate) at the top of Tower 88, it gives you an amazing view of the bay.Better still,its entire seating area turns slowly and it is enjoyable ②______________((see)the scenery outside while having your meal.Since it takes about an hour③______________((turn) the full 360 degrees,you are unlikely to get bored with the scenery.If you want to get the most wonderful views, your best bet is④______________((sit) by the window an hour before sunset and watch how the sky changes colours. The atmosphere is lively and modern, with its walls⑤______________((paint) white and light blue.Sky Buffet serves a menu full of eye-catching Asian dishes,⑥______________((range) from Chinese food to Japanese food. It will be a good idea ⑦______________((invite)your family and friends over for dinner. Sky Buffet is considered by many locals ⑧______________((be)the perfect location for a special occasion.
Suggested answers:
Suggested answers:
①Located ②to see ③to turn ④to sit
①To see ②to study ③to relax ④to buy
⑤painted ⑥ranging ⑦to invite ⑧to be
【设计意图】此练习比上一练习难度稍大一点，层次略深一点，让学生在一篇杂志文章中，用动词的正确形式填空，巩固了已学知识，体现了主题意义。
活动三：概括与整合
Step III 迁移创新
活动五：比赛与评价
1.Summary.
Ask students to review what they have learnt.
Write a thank-you note.
2. Extension according to the grammar book,dictionaries,or the Internet.
【备注】语法知识点讲解详见第二教案“重点语法精讲”。
【设计意图】通过借助语法书、词典、网络等学习资源来解决所遇到的问题，以提高学生的自主学习能力。
Ask students to imagine their friend has taken them out to dinner at Sky Buffet. They can write a thank-you note to their friend, offering to return the favour by inviting him 【设计意图】通过习题，检测学生对语法知识点的掌握
Ask students to imagine their friend has taken themout to dinner at Sky Buffet. They can write a thank-younote to their friend, offering to return the favour by inviting him or her to their home for dinner next weekend.Have them remember to use to-infinitives. They can usethe expressions below to help them.
Expressions:
I am writing to...
It was so kind of you to...
It was wonderful to...
I have always wanted to...
I would like/love to...
My plan is to...
Suggested answer:
Dear Tom,
I am writing to thank you for taking me to SkyBuffet. It was so kind of you to invite me and book atable by the window. It was wonderful tosee the cityscenery and watch the beautiful sunset. I have alwayswanted to give Sky Buffet a try, and it certainly livedup to my expectations! Do you have any arrangementsnext weekend My plan is to invite you over to myhome for dinner next Saturday. The view won't be asgood as at Sky Buffet but I would like to cook yousomething special to thank you.