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课件网) Unit 1 Food matters Grammar and usage Grammar and usage Below is a blog entry about eating out and eating at home. Read the entry and finish the following blanks. What is a blog ? A blog is a short name for the web log. It is like an online diary where you write something you're interested in. It often includes:(title), introduction, body, ending, (comments) App’s functions Cooking at home is (5)_____. In the last few weeks, the author engaged in home cooking. Benefits In the past, the author liked to eat (1) _____. Why The author was eager to try new restaurants. To eat out was also a social activity to (2) _____ _____ with friends. Then the author came across a cooking app last month. There are lots of (3) _____ to choose from. It offers (4) _____ for users to follow step by step. The author can cook exactly what he wants. Cooking at home is (6)_____. at the restaurant enhance the recipes detailed instructions cheaper healthier relationship To-infinitives as subjects To eat out was also a social activity, ... ..., it was not that difficult to make a simple and tasty dish. To-infinitives as predicatives ..., my first thought at mealtimes was to eat at a restaurant. My plan is to invite my friends over at the weekend ... Exploring the rules Read the blog entry again and find the sentences that use to-infinitives as subjects or predicatives and fill in the table below. 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) _____ . it be Working out the rules 1. To cook Chinese food is not easy. 2. It is difficult to find a true friend. the subject 1.动词不定式可以在句中用作主语，表示具体的、一次性的或尚未做的动作。 2. 动词不定式作句子主语时可以用形式主语it 代替，将不定式置于句末。 Working out the rules ? 被邀请到你家做客真的是太荣幸了。 It is a great honour to your family. ? 在家做饭准备环节需要花很长时间。 It takes a long time home-cooked meals. to be invited to prepare for It is + n.(a pity, a shame, an honour …) to do sth It takes sb some time/money… to do sth ? 你为我们做了这么多美味的菜真的是太好了。 It is nice ____ you _____ so many tasty dishes for us. ? 在当今社会，我们学会做饭还是很有用的。 It is useful _____ us . to learn how to cook for to make It is + adj.+ for/of sb to do sth of （如 good/ kind/ nice/ clever/ foolish/ selfish…） （如easy / difficult / hard / unwise / possible/ necessary…） ? 烹饪对于我来说还有点挑战性。 It seems _____ cooking is a bit challenging for me. ? 据报道16人在这次地震中死亡。 It is reported _____ 16 people were killed in the earthquake. that that It seems/appears/happens + that从句 It is + 过去分词（believed/ said/shown/hoped...） + that从句 ? When to start remains undecided. ? To find the way to the hotel is difficult. “疑问词+to do sth”作主语。 不定式作主语时，句子的谓语 ... ...
