高二英語Module 7 Unit 1 Living Well 導學案
the box is light enough to carry. the river water is warm enough to swim in. ⑶ 主語 + be + too + adj. + to dothe books seemed too heavy to carry. the ice is too thin to skate on. 【task two】自主探究：動詞不定式的作用1 不定式作主語 (subject) to keep smiling is healthy for you. it’s important to look up the new words in the dictionary when you study english. 單個不定式作主語時, 謂語動詞用單數。若不定式太長, 往往用it作形式主語 句型：it ＋be＋adj. for/of sb to do sth. it takes sb some time to do sth. 2 不定式作表語 (predicative) to see is to believe. /seeing is believing. 不定式常用在系動詞 be, seem, appear, get, remain等后作表語。 all you have to do is (to) finish the job quickly. 如果主語部分有個表示不定式內容的do, 用作表語的不定式可省略to。 3 不定式作賓語 (object) 句型: think / consider / find it + adj. + to do 常接動詞不定式作賓語的動詞有： agree, afford, appear, ask, attempt, care, choose, claim, dare, decide, demand, deserve, determine, expect, fail, get, hate, hesitate, hope, hurry, intend, learn, manage, offer, plan, prepare, pretend, promise, refuse, seem, tend, threaten, want, wish。 4 不定式作賓補 (object complement) my mum asks me to play the piano two hours every day. the teacher told me to clean the blackboard. i expect you to give me some help. 引導不定式作賓補的動詞： warn, tell, allow, help, ask, force等+ sb. to do sth. 不定式做賓補時不帶to的情況: 1 不定式在感官動詞(feel, hear, listen to, watch, look at, notice, observe)后； 2 使役動詞 (let, have, make)后邊作賓補時, 省去to, 但是在被動語態中要還原to； 3 不定式用在介詞but, except, besides后時, 如果這些介詞前有行為動詞do的各種形式, 那么介詞后的不定式不帶to,相反則帶to。 1. she could do nothing but cry.2. i have no choice but to go. 3. what do you like to do besides sleep. 5 不定式作定語 (attribute)1. kate is looking for a suitable coat to wear. 2. tom has a nice pen to write with. ★不定式做定語時常放在被修飾的名詞或代詞之后 (a) she was very busy and had no time to visit her friends. (b) ladies and gentlemen, i have something important to tell you. ★不定式作定語與所修飾的詞之間有三種關系： i have a lot of work to do. 我有很多工作要做。 (1) 動賓關系 he is always the first to come. 他總是第一個來。 (2)主謂關系 we all have a chance to go to college. 我們都有上大學的機會。 (3)同位關系 ★當名詞被the first, the last, the only等詞以及形容詞最高級修飾時 eg: she is always the first to come and the last to leave.