3. Have you got any questions to ask?
I have no chair to sit on.
定语
Betty是第一个知道真相的人.
练 习
Betty was the first to know the truth. 没什么可担心的。
There is nothing to worry about.
不定式
1. He pretended to be reading attentively when
I came in.
( 宾语）
2. It is of great help for us to learn English well.
3. I didn’t expect Mary to invite me to her ( 主语）
Infinitive
动词不定式
.
知识梳理
形式 主动式
一般 式进行Leabharlann 式完成 式to do
to be doing to have done
被动式
to be done
/
to have been done
.
与谓语动作的关 系
动作发生在谓语 动作之后
与谓语动作同时 发生
动作发生在谓语 动作之前
Pick out the infinitives in the sentences and tell their functions.
birthday party.
( 宾补）
4. She listens to news every day so as to find
out what’s going on.
( 状语）
5. The car to be bought is for his sisters. ( 定语） 6. The important thing in life is to have a great
她的梦想是当一名设计师。
Her dream is _to__b._e_c_o_m__e__a_d__e_s_ig__n.er
不定式的用法
不定式在句中的作用
advise, allow, ask, beg, encourage, expect, forbid, force, get,
invite, order, persuade, permit, prefer, tell, want, warn, wish,
We watched them play football .
.
aim, and the determination to attain it.( 表语）
归 不定式可作主、宾、表、定、状、补语。起名词，形容词
纳 和副词的作用。
.
不定式的用法
不定式在句中的作用
It is + n/ adj. ( for/of sb.) to do
To tell him the truth is necessary.
2. I need to attend the meeting. 宾语
She wants to see the new movie.
他们决定周末去野餐。
练 They have _d_e_c_i_d_e_d_t_o__h_a_v_e_a__p_ic_n_i_c__at 习 the weekend.
他拒绝借给我自行车。
They _r_e_fu__s_e_d_t_o_l_e_n_d_me his bike.
.
不定式的用法
不定式在句中的作用
修饰抽象名词如：ability, answer, reply, chance, excuse, idea,
moment, reason, time , promise, attempt, way 等+to do(5+3P61)
see you again. 2. 他们那样做是不明智的。
It is unwise__o_f._th_e_m_t_o_d_o_l_ik_e_t_h_a_t __.
不定式的用法 不V定+式to在do句(中5+的3P作60用)
d决ec心ide学,/d会ete想rm希ine望, le,ar拒n, 绝wa设nt,法exp愿ec假t/ h装op.e/wish, refuse, ma学sak会n/baeg答ge,, 应hcaerl选pe/, ap计frfeo划tredn,,ds同,torifv意fee,r请,hparp求opme帮ins,e一w, ca帮hito, ot.hsree,aptelann, agree,
主语
To give up smoking is right.
It is necessary to tell him the truth.
It is right to give up smoking.
练 1. 再次见到你真高兴。 习 It’s nice/good / a great pleasure to
would like sb. to do (5+3P62)
5. I didn't expect Mary to invite me to her
birthday party.
宾补
你可以让你姐姐帮你一下。
练
习 You can ask your sister to help you .
我总是劝他戒烟。
I always advise him to give up smoking.
.
不定式的用法
注意
to 有些动词后面的不定式不带 ，如feel（一感）
hear,listen to（二听）make, have, let（三让） see, watch, notice, observe（四看）.
I heard them sing a pop song .
The teacher made me answer the question.
我没机会外出观光。
I have no chance to. go sightseeing.
不定式的用法
不定式在句中的作用
4. The best way to learn English
is to make friends with a native 表语
speaker.
我的目标是考入北大。
练 习
My goal is_to__b_e_a_d_m_it_te_d__to_B__ei_ji_n_g_U_n_iv_e.rsity