九年级英语第13单元课件Unit 13 (4)

transportation [ˌtrænspɔ:(r)'teɪʃn] n. 运输业; 交通运输
Grammar Focus
We’re trying to save the Present
earth.
progressive
The river used to be so clean.
used to
The air is badly polluted. Passive voice
an environmental project ? 参加 Eric: Yes, I have. I _h_e_l_p_e_d(help) with a
Clean-Up Day last year. It was _c_o_n_s_i_d_e_re_d_ (consider) the biggest clean-up project this city _h_a_d_ ever
Unit 13
We are trying to save the earth!
take part in 参加 afford [ə'fɔ:(r)d] v.承担得起(后果);买得起 turn off 关掉 reusable [ˌri:‘ju:zəbl]adj. 可重复使用的;
再次使用的 pay for 付费;付出代价 take action 采取行动
take the bus. All these
付费;付出代价
加起来 small things c_o_u_ld_/_c_an_a_d__d_up and become big things that _w_o_u_ld_/_c_a_n_ improve the environment. Let’s take action now!
this city is __tr_y_i_n_g (try) to improve the environment. Eric: Yes, we can’t afford to _w_a_i_t (wait) any longer to take action!
v. 承担得起(后果); 买得起
1.take part in 参加会议或者群众性的活动，并在其 中发挥作用。
Dancing affords us pleasure. 跳舞给我们带来快乐。
4b Fill in the blanks with the appropriate
modal verbs from the box.
can
would
have to should
may/ might
could must
People _m_a_y_/_m__ig_h_t_ think that big things _m_u__st__ be done to save the earth. Many forget that saving the earth begins with small things. For example, you __c_a_n save
every year. 5. He _h_a_s__li_v_e_d_ (live) here for 20 years.
man before. 3. Tom _h_a_s__w_o_r_k_e_d(work) there since
two years ago.
4. The twins h__a_v_e_w_a_s_h_e_d_ (wash) the clothes for an hour.
5. He _h_a_s_p_l_a_y_e_d (play) basketball since three years ago.
Translation. 1. 她过去常常周末和朋友闲逛。
She used to hang out with friends on weekends. 2. 他习惯晚睡。 He is used to staying up.
被动语态：Passive voice
定义：是动词的一种形式，表示主语是 动作的承受者 结构：be + 过去分词
6. How long _h_a_s_ Sally _s_u_n_g_ (sing) yet?
Leabharlann Baidu态动词
1. 情态动词本身有一定的词义, 表示说话 人的情绪、态度或语气, 但不能单独作 谓语, 只能与其他动词构成谓语。常见 的有: can (could), may (might), must, need, shall (should), will (would)等。
Different kinds of machinesare used to work by the workers.
现在完成时: Present perfect
定义：表示动作已经完成, 但对现在造成影 响; 或者表示从过去某一时间开始一 直延续到现在并还可能持续下去的 动作。
结构: has/have + 过去分词 标志词：already, yet, ever, never, since,
use –usable—reusable review rebuild
adj.可重复使用的 关掉 electricity by turning off the lights when
you leave a room. Youc_o_u_l_d_/c_an also use
r_e_u_s_a_b_l_e bags instead of plastic bags. I think it’s
B: I disagree. It’s difficult for parents with ——————
young children —to use public transportation...
练习题
I. 用所给词的适当形式填空。 1. The old man used _t_o_b_e_ (be) a teacher. 2. We should _c_l_ea_n_ (clean) the room every day. 3. Look! Tom _i_s_s_le_e_p_i_n_g (sleep) in his room. 4. Lots of trees a_r_e_p__la_n_t_e_d_ (plant) on the hill
2. 情态动词无人称和数的变化, 后接动词 原形。否定式是在情态动词后面加not 。个别情态动词有过去式形式, 可用来 表达更加客气、委婉的语气。
e.g. Ken can climb up the tress like a koala. Tracy could ride a bicycle when she was five years old. You mustn’t play with fire. It is dangerous.
a great idea that you nowh_a_v_e__to_ pay for
plastic bags in some stores. And instead of driving to school or work, you _c_an__/s_h_o_u_l_d_ ride
your bike or walk. If it’s far, you __c_a_n_/c_o_u_l_d_
used to do与be used to doing
used to do sth. 表示过去常常做某事, 而现 在往往不做了, 后接动词原 形。
be used to doing sth. 表示习惯于做某事 e.g. I used to get up at six o’clock.
Joe is used to drinking a cup of coffee every morning.
for… e.g. I have eaten lunch, I’m not hungry.
I haven’t finished my homework yet.
Complete the following sentences. 1. I _h_a_v_e_b_e_e_n_ (be) in Beijing for two years. 2. I _h_a_v_e_ never _h_e_a_r_d(hear) of that
No scientific studies have shown that shark fins are good for health.
We should help save the sharks.
Present perferct
Model verbs
现在进行时: Present progressive
e.g. A new school was built last year. Our classroom is cleaned every day.
Translate the sentences by using Passive voice. 1. 刚才一些老年人参观了博物馆。
The museum was visited by some old people just now. 2. 工人们使用不同种类的机器工作。
2. We can’t afford to wait any longer to
take action! afford v. 承担得起; 提供, 给予 afford to do sth. (常与can, be able to连 用) 买得起; 有足够的……
e.g. We can’t afford to buy this big house. 我们 买不起这个大房子。
She may know the answer of the question.
4a Fill in the blanks with the correct forms of the verbs in brackets.
Joe: _H_a_v_e_ you ever __ta_k_e_n_ (take) part in
_h_a_d_ (have).
Joe: How many people _t_o_o_k(take) part? Eric: I _t_h_i_n_k (think) more than 1,000
people _c_a_m__e_ (come) to help out. Joe: That’s fantastic! I guess everyone in
e.g. We’ll take part in the sports meeting. 我们将参加运动会。
join 加入某个党派，团体，组织等，如“参军 ， 入团，入党”等。
e.g. He joined the Party. 他入了党。
join in 参加小规模的活动，如“球类，游戏”等。
e.g. May I join in the game? 我能参加这个游戏吗？
定义：表示说话时(瞬间)正在进行 的动作, 也表示目前或现阶 段正在进行的动作。
结构: be (am/is/are) + v.-ing 标志词：Look, Listen, now, right now… e.g. Look! The boy is crying.
Three boys are playing basketball. A girl is reading a book.
采取行动
4c Make a list of things that people can
do to help the environment and discuss your list with your partner.
use public transportation ...
A: I think that everyone should use public transportation.(公共交通运输)
Translation. 1. 我们不能在教室里吃东西。
We can’t eat in the classroom. 2. 首先你必须完成作业。
You must finish your homework first. 3. 我们应该学好英语。
we should learn English well. 4. 她可能知道这个问题的答案。