新人教版九年级英语下册Unit 13 We’re trying to save the earth!要点详解
人教版 九年级英语 下册 Unit_13_We're_trying_to_save
5. --Do you know Mr.White well? -- Yes. Heh_a_s__w_o_r_k_e_d_(work) for the WWF for two years.
6. Ih_a_v_e_l_i_v_ed___ (live) here since 1990. 7. -- Do you often clean your classroom?
情态动词练习
1.-- ____ you pass me a pen? I'd like to write down the phone number. -- Sure. Here it is. A.Can B.Need C.Might D.Must
2. -- May I go to the cinema, Mum? -- Certainly, but you ___ be back by 11 o'clock. A.can B.may C.must D. need
D. was reading
4. —May I go out now, Dad?
— No. You _____ let your mother know first.
A. can B. may C. need D. must
5. Her son _______ Coke, but now he ________ milk.
问句) ___D__id__K__en__u_s_e_t_o__b_e_a_f_r_a_id__o_f_d_o_g_s?
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_le_a_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 every year. 5. He _h_a_s__li_v_e_d_ (live) here for 20 years.
人教版九年级英语下册《Unit13 We’re trying to save the earth》(
The earth is polluted.
air pollution
n. 煤炭
The factories that burn coal pollute the air with a lot of black smoke.
water pollution
noise pollution air pollution water pollution _l_ou__d_m__u_si_c___ __f_a_ct_o_r_ie_s___ ____sh_i_p_s_____ __p_l_an__es______ __sm__o_k_in_g____ ___r_u_b_b_i_sh____ _m__o_b_il_e_p_h_o_n_e_s ___ca_r_s______ ___l_it_t_er_i_n_g___ b_u_i_ld_i_n_g_h_o_u_se_s_ b_u_il_d_in_g_h_o_u_s_es_ ___f_ac_t_o_r_ie_s___
Factories put waste into the river.
mobile phone pollution
litter v. 乱扔 n. 垃圾
rubbish waste 垃圾，废弃物
People should throw away litter in the bin.
n. 垃圾箱
noise pollution There are more cars on the road.
2. What are they talking about? The environmental problems.
3. What other problems do they see? There’s too much rubbish and waste in the streets.
人教版九年级英语下册Unit 13 We’re trying to save the earth!S
2．It's good for hetrlth and it doesn’t cost anything！它有利于信康，并且它不花费任何东
西！（教材第98页） be good for意为“对……有益”，反义词组be bad for意为“对……有害”。 辨析：be good for，be good at与be good with
【中考链接2】
1. (2014山东威海中考模拟) Why don't you＿＿A ＿your
friends to the party? I want to meet them.
A bring
B. brings
C.leaves
D Mr Li. I A my
Unit 13 We’re trying to save the earth!
Section A 课堂精讲
【语法点精讲】
1．（1）We're trying to save the earth!我们正在 竭力拯救地球！
（2）People are throwing litter into the river.人们 正在把垃圾扔进河里。
(2) 表示现阶段正在进行的动作或存在的状态。 如： They are studying hard this term. 他们这个学期学习一直很努力。 (3)come,go，leave，arrive，start等动词用现在 进行时表示将来。 如：The bus is coming soon. 车不久就会来了。 (4)在由while(当……时候)引导的状语从句中，动
English homework at home.
－Don’t forget it to school tomorrow.
人教版九年级英语下册Unit 13 We’re trying to save the earth!
答案: 1. 垃圾 2. 底部 3. fisherman 4. advantage
5. plastic 6. wooden
Ⅱ. 短语连线 1. be full of 2. turn. . . into. . . 3. cut down 4. make a difference 5. lead to
【学以致用】
①(2014·十堰中考)—Smart phones are more and more popular
答案: 1. We’re trying 2. used to be 3. are throwing
4. 这个城镇的每个人都应该参与到清理之中!
Everyone in this town
a part in cleaning
it up!
5. 这周围的空气真的已经污染了。
The air
really polluted around here.
【自主归纳】
(1)advantage名词, 意为“优点; 有利条件”, 常用复数形式。
反义词为
, 意为“缺点; 不利条件”。
(2)advantage的常用搭配有the advantage(s) of意为“……的优
点”, take advantage of sb. 意为“占某人便宜”, take the
hands.
A. experience B. advantage C. dream
答案: take; the advantage of
this as to have big D. change
3. cost v. 花费 【语境领悟】 *It’s good for health and it doesn’t cost anything! 它对健康有好处, 并且不花任何钱! *I spent a lot of money on that holiday. 那次度假花了我一大笔钱。 *I think it’s a great idea that you now have to pay for plastic bags. 现在你得付钱买塑料袋, 我认为这是个好主意。 *It takes me forty minutes to do my homework. 做作业花费我四十分钟。
新人教版九年级英语下册《Unit13We’retryingtosavetheearth》教案
Unit 13 We’re trying to save the earth!教案知识导航语言目标谈论污染和环境保护。
Section A 重点单词1. litter v.乱扔n.垃圾2. bottom n.底部3. coal n.煤4. ugly adj.丑陋的 5. cost v.花费n.花费 6. wooden adj.木制的(wood n.木材) 7.plastic adj.塑料的n.塑料8. method n.方法9. cruel adj.残酷的10.harmful adj.有害的(harm n.害处) 11. industry n.工业12. law n.法律13. afford v.承担得起重点短语1.make a difference 起作用；有影响2. take part in 参加3. turn off 关掉4. pay for 付费；付出代价5. cut down 减少6. lead to 导致7. hear of听说8. cut off 切除重点句型1.We’re trying to save the earth. 我们在努力拯救地球。
2. The rive used to be so clean. 这河流过去是如此的清澈。
3. The air is badly polluted. 空气被严重污染。
4. The method is not only cruel, but also harmful to the environment. 这种方法不仅残酷，而且对环境也有害。
Section B +Self Check 重点单词1. recycle v.回收利用2. gate n.大门3. bottle n.瓶子4. president n.负责人 5. work n.作品 6. metal n.金属重点短语1. throw away 扔掉2. put sth. to good use 好好利用3. put … down 拆下 4. upside down 上下颠倒 5. bring back 恢复重点句型1. And the gate in front of her house is made of rocks and old glass bottles.她房子的前门是由岩石和旧玻璃瓶子制成的。
人教版九年级英语下册Unit 13 We’re trying to save the earth!教
Unit 13 We’re trying to save the earth!教学案班级姓名编号日期主备审稿________【学习内容】Unit 13 We’re trying to save the earth . Section A 1a-2d【学习目标】1. 掌握litter ,ugly ,advantage , cost ,wooden ,bottom ,fisherman, coal, plastic , takeaway ,bin，the bottom of, make a difference等单词和短语。
2．掌握Even the bottom of the river was full of rubbish.Everyone in town should play a part in cleaning it up.等句型。
3．能听懂关于环境污染和环境保护的听力材料。
能正确运用现在进行时态，used to结构，现在完成时态，被动语态和情态动词谈论环境污染和环境保护。
通过谈论环境污染，学生能培养自己的环保意识。
做到：保护环境，从我做起，从小事做起。
【自主学习】预习课本，找出重点短语.【自学检测】翻译（请同学们关上课本独立完成,完成后对子间相互批阅。
）拯救地球__________________ 大量的黑烟__________________ 大声的音乐__________________ 太多的垃圾和废物_________________噪音污染__________________ 在公众场合__________________河流底部__________________ 变成丑陋的地方________________ 参与__________________减弱空气污染__________________废物污染__________________ 木头筷子__________________被严重污染__________________塑料叉子__________________燃烧煤块__________________创造一个更好的未来______________【合作探究展示】Step 1 情景导入用多媒体给学生播放一些有关环境污染的图片或视频，然后询问学生对环境污染的看法和观点。
人教版九年级全一册英语Unit-13-We’re-trying-to-save-the-earth-教案
Unit 13 We’re trying to save the earth!教案(SA)Unit 13 We’re trying to save the earth!一、教学目标：1. 语言知识目标基本词汇：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem,industry, law, scientific, afford, reusable, transportation, recycle,napkin, upside, gate, bottle, president, inspiration, iron, work, metal,creativity,基本词组：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull… down, bring back基本句型：We’re trying to save the earth!The river used to be so clean.The air is badly polluted.No scientific studies have showed that shark fins are good for health.We should help save the sharks.2. 技能目标: 能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto 句型。
3. 情感目标:有环境危机意识，学会关注环境保护环境。
二、教学重难点：1. 教学重点：（1）能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型。
人教版英语PEP英语九年级下册 Unit 13 We’re trying to save the e
problem be
to ___c_lo_s_e_d_o_w_n___ the factories. Everyone should
solved?
help to ___c_l_e_an__u_p____the river.
Listen again and answer the questions.
water pollution
land pollution
Do you know what caused the pollution? What should we do to save the earth?
Presentation
1a Here are some words related to different kinds of pollution Write them in the box below. Then add more words.
What caused the People are throwing ____l_it_te_r_______ into the river.
problem?
Factories are putting ____w__a_st_e______ into the river.
How should the We should write to the __g_o_v_e_r_n_m__en_t__ and ask them
健康的饮食在帮助人们长寿方面起着非常大的作用。
Homework
1. Preview the conversation in 2d. 2. Do the exercises in students’ book.
Thank you!
Unit 13 We’re trying to save the earth!
【精选】人教版九年级下册英语第十三单元《 Unit 13 We're trying to save the earth!》优秀教案
Unit 13 We're trying to save the earth!Section A (1a－2d)【学习目标】1．重点单词：litter，bottom，fisherman，coal，ugly，advantage，cost，wooden，plastic，takeaway，bin2．重点短语：the bottom of，play a part in，make a difference，cut down，lead to3．重点句式：We're trying to save the earth.Even the bottom of the river was full of rubbish.Everyone in this town should play a part in cleaning it up.I used to be able to see stars in the sky.So together，our actions can make a difference and lead to a better future.【学习重点】1．重点短语和句型2．used to的用法3．一般现在时和现在进行时的用法【学习难点】1．重点短语和句型2．used to的用法3．一般现在时态和现在进行时态的用法【自主学习】一、预习课本P97－98新单词并背诵，完成下面的汉译英。
1．乱扔；垃圾____________ 2.底部____________3．渔民____________ 4.煤块____________5．丑陋的____________ 6.优点____________7．花费____________8.木制的____________9．塑料的；塑料____________10．外卖食物____________11．垃圾箱____________二、认真预习1a－2d找出下列短语和句型。
人教版九年级英语下册《Unit13 We’re trying to save the earth》(
2d Underline the words in the passage based on
the words below. What are the differences?
think use usual actual build create special
rreecceenntt eennvviriroonnmmeenntt imimppoorrttaanntt pprrootteecctt ininssppiriree
Will do---taking your owm bags when shopping
Never do---turn off the shower; not riding in cars, riding a bike
1e Make a conversation using the
information from the chart above. Say what is true for you.
Unit 13
We are trying to save the earth.
Section B 1a-3b
1a What can we do to help save the planet?
Rank these items from the easiest (1) to the most difficult (5)
Things which can be done by people every day:
• take your own bags when you go shopping. • spend less time in the shower • turn off the lights when you leave a room • take public transport rather than drive • avoid using air conditioners
人教新目标九年级英语下册人教版九年级英语Unit13_we’re_trying_to_save_the_earth(1a--2d)
The sharks were caught.
The shark is being killed.
The man is cutting the fin off.
The fins will be delivered to the markets or the restaurants
Yao Ming ,the Chinese basketball star , are calling on us to protect sharks. As what he said in the Ad， when the buying stops, the killing can tis pollution causes the climate change and global warming , the higher temperature leads to storms and floods.
What should we do to save the earth?
1.We should tell the people who drive to drive less. 2.We should tell the factories which produce the waste gas and water to produce less. 3.We should tell ourselves not to litter in the river. 4.We should tell ourselves to use shopping bags that we are carrying when we’re shopping. 5.Maybe we should write to the newspapers ,magazines or the government for help. 6.Maybe we are able to use the internet for fighting with the pollution as well. Though I always feel our voice is too weak to be heard. I still believe it’s a good idea to do something to help save our earth.
新人教版九年级英语下册《Unit13 We’re trying to save the earth》(Self Check)精品课件
It must belong to Carla.
1 Write different forms of the words. Then add more to each group.
v. — n. n. — adj.
pollute— pollution act— action protect— protection inspire— inspiration build— bulding create— creation
Grammer Present progressive
Modal verbs Passive voice used to
Present perfect
3. write ways to cut down on these kinds of pollution.
Kinds of pollution water pollution land pollution Ways to cut down ask factories not to throw wast into the river; remind people not to litter ensure that factories throw away industrial wast in a responsible way;try not to use plastic bags whtter to the local goverment,
raise the environmental problem and try to
think out possible solutions .
2. 背诵2b.
adj. — n. adj. — adv.
different— difference important—importance
新人教版九年级英语下册UNIT13 We're trying to save the earth.检测题附听力原文及答案解析
UNIT 13 We’re trying to save the earth！检测题(时间：60分钟；满分：100分)一、听力部分（满分20分）Ⅰ. 听句子，选择相应的应答语。
每个句子读一遍。
（每小题1分，满分5分）1. A. That’s right. B. It doesn’t matter. C. Don’t mention it.2. A. Good idea. B. Well done. C. No, thanks.3. A. I don’t think so. B. I’m glad you like it. C. Sorry to hear that.4. A. Yes, I’m Linda. B. This is Linda speaking! C. I’ll call back again.5. A. Never mind. B. I have no time. C. OK, I will.Ⅱ. 听短对话，选择正确的答案。
每段对话读两遍。
（每小题1分，满分5分）6. What does the man want to be?A. A reporter.B. An actor.C. A doctor.7. How much time does Jane spend on her hobbies now?A. About two hours.B. About an hour.C. About half an hour.8. When was Jim born?A. In 1992.B. In 1991.C. In 1994.9. Where can this conversation probably take place?A. In the shop.B. At the airport.C. In the hotel.10. What’s Mary’s favorite sport?A. Boating.B. Swimming.C. Surfing.Ⅲ. 听长对话，选择最佳答案。
新人教版九年级英语下册unit 13 we’re trying to save the earth! Section A讲学稿
unit 13 we’re trying to save the earth! Section A讲学稿课题Unit13Section A课型展示课执笔人审核人级部审核讲学时间第周第导学稿教师寄语Pain past is pleasure.(无论多么艰难一定要咬牙冲过去，将来回忆起来，一定甜蜜无比)学习目标1.知识目标：能掌握单词和短语。
2.能力目标：Talk about customs and what you are supposed to do3 情感目标：有礼貌的询问。
学生自主活动材料Step 1:Teaching aims(教学目标)1.Words and phrases。
2.Talk about pollution and environmental protection.Step 2:前置自学1.First read and remember the new words. And pay attention to the language points.噪音污染__________ 空气污染__________ 脏的________ 政府________ 垃圾_______参与做______________ 简单的事情___________ 木质筷子____________ 听说__________环境___________ 昂贵的__________ 保护________ 采取行动___________ 残忍的________ 对…有害___________ 减少________ _______ 海洋生态系统______________ 买不起___________ Step3: 合作探究小组讨论：如何保护好环境_______________________________________________Step 4：拓展提升1. Thank you for _______A. wake me upB. waking up meC. waking me upD. wake up me2. The little boy asked______ what should I doA. heB. himselfC. hisD. her3. Jack likes playing _____ soccer. But he doesn’t like playing ___ piano.A.\.\B. the.\C. the. theD. \.the4. - Can sixteen-year-olds drive to school?- No. They shouldn’t to drive their, because they are not serious enough.A. offeredB. am offeredC. was offeredD. have allowed5. It’s time ______ him_____ up. Or he will be late for school.A. of. to getB. for to getC. of gettingD. for getting6. It is seldom warm in winter.____ ____A. isn’t itB. isn’t itC. is itD. it is7. —What do you think of the new bridge?—I have n ever seen _____ before.A. so a l ong oneB. so long oneC. such a long oneD. a such long one8. —I think Mr Zhang may be in his office.—No, he be there. I saw him just now.A. needn’t; leftB. mustn’t; leavingC. can’t; leaveD. shouldn’t; leave9. He is so careless that he often his school things at home.A. putsB. forgetsC. takesD. leaves10. Would you mind me how this physics problem ?。
人教版九年级下册 Unit 13 We're trying to save the earth 件
1b
1b
Listen and complete the sentences.
What was problem?
really dirty
the
The river was ________. Even threubbotbtoismhof the river
was full of ________. fishermen to catch.
Because of the pollution, many animals
were killed.
越来越
Because of the pollution, _m__o_re__an_d__m_o_r_e_
animals don’t have places to live in.
How many kinds of pollution do you know?
As a student, it's our duty to think of some ways to save our planet in future.
Help save the earth
环保标语征集 请你针对各种环保现象设计至少三条以上的环 保标语。标语提示句型可参考：
Don't... We should... We can't / shouldn't ..., or... If we..., our world will...
air pollution
noise pollution land pollution
A: Haze is becoming more and more s_e_r_i_o_u_s . We can hardly see the blue sky these days .
新人教版初三英语九年级下册Unit 13 We're trying to save the earth!Section B 2a-2e课件
Read paragraph 3 and answer the questions.
Look at the title and the pictures . Can you guess what the passage is about?
Rethink, Reuse, Recycle!
Fast reading : Listen and complete the chart below.
1.Is Jessica Wong good at recycling? What does she do? Yes, she is. She uses old clothes that people don’t wear anymore to make bags. 2. Where does she sell her bags? Her shop and website.
Motivate the students to love and
protect the environment .
1.4 Teaching Key and Difficult Points
The key points
Grasp the key words and expressions.
Extract important information through reading tasks.
Names
What materials did they use? What did they make?
九年级英语下册 Unit 13 We're trying to save the eart(3)
息时间，你们休息一下眼睛，
看看远处，要保护好眼睛哦~站起来 动一动，久坐对身体不好哦~
3. 我们齐心协力就能带来变化，创造更加美好的 未来。 Our _a_c_t_io_n_s_can _m__a_k_e_a__d_if_f_er_e_n_c_e_ and __le_a_d__to__ a better future.
1. 充满 2. 扔进 3. 在……起作用 4. 扔掉 5. 减少
be full of throw…into play a part in throw away cut down
6.起作用；有影响 7.导致 8.切除 9.不但……而且…… 10.对……有害
make a difference lead to cut off not only…but also… be harmful to
Then, give suggestions or possible ways to solve the problems.
➢ I think that… ➢ We should/ could… ➢ I suggest…
Topic
To protect the environment
➢ 思路点拨
used to
The air pollution is getting worse and worse. Present perfect
Language points
The air pollution is getting worse and worse. worse and worse 越来越糟 结构：比较级+ and+比较级 越来越…… 例句：他变得越来越高了。
and poisonous gas are given off by factories. Factories
九年级英语下册 Unit 13 We're trying to save the eart(1)
cost wooden
plastic cruel
harmful industry
v. 花费 n. 花费；价钱 adj. 木制的；木头的 adj. 塑料的 n. 塑料；塑胶 adj. 残酷的；残忍的 adj. 有害的 n. 工业；行业
一般将来时 will/ shall be+及物动词的过去分词
现在进行时 am/ is/ are+being+及物动词的过去分词
现在完成时 have/ has been+及物动词的过去分词
四、used to的用法 used to+动词原形 过去常常做…… 被动结构：used to be + 动词过去分词
五、情态动词 1. 概念：表示说话人对所述动作或状态的态度
或看法，它不能单独作谓语，必须和 后面的动词原形一起构成谓语，没有 人称和数的变化。
2. 常用的情态动词的用法 （1）can/ could
① 意为“能；会”，表示能力，此时could 为 can的过去式。
② 意为“可以”，表示请求、许可，此时could 不是can的过去式，只是表示更委婉、客气的 语气。
6. Anyone who is good at singing can _____ the
activity in our school.
A. take part in
B. take off
C. take out
D. take care of
三、根据汉语意思完成句子，每空一词。
1. 听！那个歌手在练歌房里引吭高歌。 Listen! The singer is singing _a_t_ _t_h_e_ _t_o_p_ _o_f_ his voice in the singing hall.
人教版九年级英语下册Unit 13 We’re trying to save the earth!
down
5. 恢复; 使想起; 归还
back
答案: 1. 扔掉; 抛弃 2. 好好利用某物 3. down 4. upside
5. bring
Ⅲ. 句型填词
1. 如果你有创意的头脑, 没有什么是废物。
Nothing
a waste
you have a creative
mind.
2. 她住在英国, 房子是她自己用废弃物建造而成的。
to others,
it also shows that even cold, hard iron
back to life with a little
creativity.
答案: Not only can; but; can be brought
1. Why is Amy Hayes a mosthas new furniture in it.
A. who
B. where
C. that
3. The top of the house is an old boat turned upside down. 房子的顶部是一条颠倒过来的旧船。 【句型剖析】
此处过去分词短语turned upside down意为“被颠倒过来 的; 被翻转过来的”, 用作后置定语修饰名词boat。英语中短语 和从句用作定语时, 应置于名词之后, 作后置定语。例如: the children boating on the lake“湖上泛舟的孩子们”, novels written by Mark Twain“马克·吐温写的小说”。
2. What does Jessica Wong use old clothes to do?
答案: 1. Because she lives in a house in the UK that she built herself out of rubbish. 2. Make bags.
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Unit 13 We’re trying to save the earth!要点详解1. We’re trying to save the earth!我们正尽力拯救地球！(1) 本句时态为现在进行时，表示现阶段正在做的事情。
现在进行时所表示的动作并不一定在说话人的说话时刻进行，而是在包括说话时刻在内的一段时间当中进行。
例如：George is translating a book now. 乔治现在在翻译一本书。
（说这句话时，乔治不一定正在翻译；但在包括“说话时刻”在内的一段时间当中，乔治是在从事翻译工作。
）(2) try to do 表示“设法或尽力去做某事”，实际上做与不做，视情况而定，而try doing表示“试着做”，即动作真的进行了或正在进行，成败则视结果而定。
例如：He tried to read, but he was too tired to read much.他想设法看书，但太疲倦了，没看多少。
He tried reading, but that could not make him forget his trouble.他试着看书，但这并没使他忘记烦恼。
2. I am like this animal because I am strong and intelligent.我像这种动物，因为我强壮而聪明。
(1) like在本句中做介词，意为“像”，例如：He looks like winning the race.他看来要在比赛中获胜。
She is like her mother.她像她的妈妈。
(2) like做介词时可用very，very much，rather，quite等副词修饰。
例如：You look very much like your father.你与你父亲很相像。
3. Some of the swamps have become polluted。
一些沼泽已被污染了。
(1) swamp意为“沼泽；沼泽地”，既可做可数名词，也可做不可数名词。
例如：There is some swamp in that province.那个省有一些沼泽地。
Those swamps are the best places for this kind of animal to live in.那些沼泽地是这种动物生活的最好地点。
(2) 本句的时态为现在完成时，表示一个发生在过去的动作对现在造成的影响及过去的动作、状态一直延续至今并有可能继续下去，强调的是现在的情况，所以现在完成时不能和确定的表示过去的时间状语连用。
例如：She has never read the book.她从未读过那本书。
We’ve been up for two hours.我们已经起来两个小时了。
4. I am writing to say that I am against building a new zoo in our town.我写信是要说我反对在我们城市建一所新的动物园。
(1) 短语be against (doing) sth. 意为“反对（做）某事”，而be against sb. 意为“反对某人”。
例如：I’m against putting off the meeting.我反对将会议延期。
They were against taking part in the activity.他们反对参加这项活动。
His father is always against him.他父亲总是反对他。
(2) 反义词：be for sb. / sth. 支持某人/某事5. I’ve visited a lot of zoos in my life, and l have never seen one I liked or one that was suitable for animals to live in.我一生中参观了很多动物园，但从未看见一个我喜欢的或是适合动物生存的动物园。
(1) 本句为并列复合句，由and连接的第二个分句中包含了两个定语从句，即l liked为定语从句修饰第一个one，that was suitable for animals to live in为修饰第二个one的定语从句。
在先行词one和定语从句I liked间省略了关系代词that，因为此时关系代词that在定语从句中做宾语，常可省略；而第二个one与定语从句间的关系代词that却不能省略，因为此时that在定语从句中做主语，不可省去。
例如：I mean the one that was bought yesterday.我指的是昨天买的那个。
(2) suitable做形容词，意为“适合的；适宜的；恰当的”；如be suitable (for sb.) to do sth.表示“适合某人做某事”。
例如：The park is suitable for children to play game.这个公园适合孩子们做游戏。
(3) suitable for... 意为“适合于……的”。
例如：It’s a place suitable for a picnic.那是个适合野餐的地方。
6. In 1972, if was discovered that they were endangered.1972年，发现它们濒临灭绝了。
(1) 句中的it为形式主语，代替that从句，that从句是句子的真正主语it做形式主语时还常用于下列结构。
例如：It’s said that there will be an exam soon.据说，很快就要考试了。
It is known that the movie star has gone to Paris.众所周知这位影星去巴黎了。
It’s reported that the weather is getting worse.据报道，天气会变糟。
It is said that there an several thousand languages in the world.据说世界上有数千种语言。
(2) it代替名词性从句做形式主语，主要用于“it + be +形容词/名词/过去分词+ that从句”结构。
例如：It was a pity that the president couldn’t come.可惜校长没能来。
It is important that we should learn English well.学好英语很重要。
(3) discover 做动词，意为“发现”，指的是发现原来已存的，但不为人知的事物。
可接名词、代词、带疑问词的动词不定式、wh-从句、that从句做宾语，也可以接复合宾语，可用于被动语态。
例如：Recently they have discovered a comet.最近他们发现了一颗彗星。
（接名词）7. They provide homes for many endangered animals and help to educate the public about caring for them.他们为濒临灭绝的动物提供家园，而且帮助教育大众来关心它们。
educate为动词，意为“教育；培养”，名词为education，形容词为educational。
The girl was educated at the teachers’ college.这个女孩曾在师范院校读过书/受过教育。
相关词组：(1) educate sb. to do sth. 教育某人做某事；培养某人做某事。
He wants to educate the player to be the champion in Olympic Games in 2008.他想把这个队员培养成2008年奥运会的冠军。
(2) educate sb. about sth. / doing sth.Parents should educate their children about speaking to the old politely.家长应当教育孩子们对老人有礼貌地讲话。
(3) care for; take care of 关心；照顾8. I urge all of your readers to visit our wonder zoo soon.我强烈要求所有的读者赶快来参观我们漂亮的动物园。
(1) urge是动词，意思是“竭力主张；强烈要求”，常用词组为urge sb. to do sth. 主张某人做某事。
例如：We urge all the people in the world to prevent the AIDS.我们主张全世界所有的人都来预防艾滋病。
(2) urge还可表示“驱策；推进”。
例如：The manager urged his staff on.经理督促职员更加努力。
(3) 常用短语：urge against 极力反对urge sb. into doing sth. 怂恿某人做某事9. It’s also at home that we save energy and recycle …在家里我们也节约能源、循环利用……这是一个强调句，在初中阶段不要求被掌握，只明白其意思就可以了。
如：It is from the sun that we get light and heat.我们正是从太阳那里得到光和热的。
10. Do you care about protecting the environment and saving energy?你关注环境保护和节约能源吗？care about可以表示“关心，重视；介意，在乎”。
如：Most parents care very much about their children’s future.大多数父母都特别关心自己孩子的将来。
拓展：(1) care这个词的用法很多。
这里简要地做些讲解，其他的用法请同学们以后留心整理。
carefor sth. 用于否定句或疑问句中，常与would连用，表示“愿意或同意做某事；希望或喜欢做某事”。
如：Would you care for going for a walk with me?愿意和我一起去散步吗？(2) care for还有“照看；照顾”的意思，与我们以前学过的take care of和look after同义，常用于被动语态中。
如：Old people are cared for by the whole society.老年人受到整个社会的照顾。