1、Unit 4 Life on MarsMars n.火星helmet n.頭盔gravity n.重力pla net n.行星crowded adj.擁擠的polluted adj. 被污染的in crease n.增力口rapid adj. 快地，迅速地passe nger n.乘客un comfortable adj.使人不舒服的，不舒適的oxyge n n.氧氣tasty adj. 味道好的specially adv. 專門 的，特地float v. 飄浮；漂浮compare v. 比較in terpla netary adj.行星間的network n.網絡challe nging a

2、dj.挑戰性的22rapidly adv.快地，迅速地aware adj. 知道，意識到circle v. 圍繞；將.圈起來agreeme nt n.致，同意dista nee n.距離；遠處possibility n.可能性alie n n.夕卜星人stra nger n.夕卜來者，陌生人perce ntage n.百分率；百分數disadva ntage n.劣勢，缺點，不利條件risk n. 風險，危險goods n.復）商品，貨品electro nic adj.電子的en terta inment n.娛樂、重點詞匯1. crowded adj./ 永 ra ?.d ?d/If a p

3、lace is crowded, it is full of people.擁擠的；擠滿人的例句： As Christmas gets closer, the shops get more and more crowded.隨著圣誕節的臨近，商店變得越來越擁擠。2. uncomfortable adj. / ?n?k?mf.t ?.b ?l/1) . not feeling comfortable and pleasant, or not making you feel and pleasant不舒服的；令人難受的例句： These shoes are really un comfortabl

4、e.這雙鞋子穿在腳上實在難受。2) . slightly embarrassed, or making you feel slightly embarrassed有點兒尷尬的；令人不自在的例句： an un comfortable sile nee令人不自在的沉默1). to stay on the surface of a liquid and not sink漂浮comfortable3. float v. /fl?104例句：An empty bottle will float.2）. to （cause to） move easily through, or along the sur

5、face of a liquid,or to （cause to） move easily through air（使）漂流；（使）浮動；（使）飄動；（使）飄移例句： We spe nt a lazy after noon floati ng dow n/along the river.我們沿河漂流而下，懶洋洋的度過了一個下午。4. compare v. /k?n?）e?r/1）. to exam ine or look for the differe nee betwee n two or more things對比，對照，比較例句： That seems expe nsive - have

6、 you compared prices in other shops?那好像很貴-你有沒有比較一下其他店里的價格？2）. to judge, suggest, or con sider that someth ing is similar or of equal quality to something else將比作；拿與相比；認為和相似（或不相上下）例句： You cant compare the two cities - theyre totally differe nt.你不能把這兩座城市相提并論一一它們完全不同。5. agreement n. /?gi ?m?nt/1）. the

7、situati on in which people have the same opinion, or in which they approve of oraccept someth ing空瓶子意見一致；同意；應允例句： The whole family was in agreement with her about/on what they shoulddo.關于他們應該做什么，全家人都和她意見一致。2). a decision orarrangement, often formal and written,between two or moregroups or people協議，協

8、定；和約例句： Fin ally the two sides have reached an agreeme nt.雙方終于達成了協議。三、必背短語air tank氧氣罐dried food干糧power pack電源包(all) over aga in再; 重新sleep ing bag睡袋at a/the speed of以的速度in the form of以的形式compare to/with與.相比carry out開展；執行after all畢竟四、經典句型1. How do you like life on Mars?你覺得火星上的生活怎么樣？2. Our own pla net,

9、 the Earth, is beco ming more and more crowded and pollutedbecause of the rapid in crease in populati on.106因為人口的快速增長，我們自己的地球正變得越來越擁擠且污染越來越嚴重。3. Huma ns cannot survive without water, oxyge n or food.人類離開水、氧氣或者事物就不能生存。4. The gravity on Mars is only about three-eighths of that on the Earth.火星上的重力僅約為地球

10、重力的八分之三。5. Compared with life on the Earth, life on Mars would be better in some ways.跟地球生活相比，火星上的生活在某些方面可能更好。心建三點剖析一、考點簡單句和復合句的轉換1.含狀語從句的復合句和簡單句之間的轉換。我們可以用一些含有介詞短語的簡單句改寫一些含有狀語從句的復合句。例句： He was able to swim whe n he was 8 years old.他八歲的時候就會游泳。（時間狀語從句）He was able to swim at the age of 8.他八歲就會游泳。He co

11、uld not go there because he had too much homework.因為他有太多的作業，他不能去那里。（原因狀語從句）He could not go there because of too much homework.因為太多的作業，他不能去那里。注意：轉換時要注意時態和意思的一致性和準確性。那位面帶微笑的老師是我的新英語老師。（定語從句）2.含賓語從句的復合句和簡單句之間的轉換。我們可以借助一些介詞來進行含有賓語從句的復合句和簡單句的轉換。例句： Are you certa in that Tom will tell the truth?你確信湯姆會說實話嗎

12、？（賓語從句）Are you certa in about Toms words?你確信湯姆的話嗎？What he said reminds me that he helped me with my En glish in the past.他說的話使我想起了他過去幫助我學習過英語。（賓語從句）What he said reminds me of his help with my En glish in the past.他說的話使我想起了他過去在英語學習上對我的幫助。注意：一些動詞和介詞的搭配。如：remi nd sb.of sth.使某人想起某事；be sure about對確信。3.含定

13、語從句的復合句和簡單句之間的轉換。我們可以用一些含有介詞短語的簡單句來與含有定語從句的復合句進行轉換。例句： Do you know the man who is holdi ng two books in his hand now?你認識那個手里正拿著兩本書的男子嗎？（定語從句）Do you know the man with two books in his hand now?你認識那個手里正拿著兩本書的男子嗎？The teacher who is wearing a smile on his face is my new English teacher.The teacher with

14、a smile on his face is my new En glish teacher.那位面帶微笑的老師是我的新英語老師。注意：介詞的選擇和搭配。、易錯點1. problem & questi on1) . problem 通常指急于解決或決定的重大問題或難題，常作 think about,work out 等的賓語。例句： This is a difficult social problem to solve.這是一個很難解決的社會問題。2) . questi on著重指由于對某事感到疑惑不解或不能斷定而提出并等待解答的問題，一般指不難的、在較短時間內能解決的問題，常與an

15、swer, ask 等連用。例句：Please an swer the questi on.請回答這個問題。2. hurt & harm1) . hurt 意為“傷害”，指感情、自尊心上的傷害，也指人身體上受了傷害。例句：He hurt his back whe n he fell.他跌倒時傷了背。2) . harm 意為“傷害，損壞”，所指傷害往往是抽象的、籠統的。例句： The no ise of mach ines harmed their heari ng.機器的噪音傷害了他們的聽力。題模精選題模一：Un it 4 詞匯應用solve,1010例 1.1.1-Food safe

16、ty has become a social focus now.-That s why laws are made to_ crimes on food.A.recordB.preve ntC.divideD.separate例 1.1.2根據漢語完成句子。1) .政府正在努力改善民生。The government is_improve people s lives.2) .我相信他會滿意的。I_ that he will be satisfied.題模二：語法-簡單句和復合句的轉換例 1.2.1 The farmers had to stop_ in the field_ the heav

17、y rain.A.work ing; becauseB.to work; becauseC.work ing; because ofD.to work; because of例 1.2.2將下列復合句改為簡單句。1). We can t do it if you don t help us.2). The pianist began to learn to play the piano when he was four years old.3). Are you sure that they are in terested in it?:J：隨堂練習隨練 1.1-_ the way, do y

18、ou think this job has become easier than it usedto be?-To be hon est, it has turned out to be more difficult_ some ways.A.In; onB.By; o nC.By; inD.In; by隨練 1.2 Although it isto wear a helmet for a long time, it can protectyour head.A.specialB.un comfortableC.crowdedD.un sure隨練 1.3 Mrs. Yang often ma

19、kes_ cakes and biscuits for kids and kids likethem very much.A.stra ngeB.tastyC.awfulD.polluted隨練 1.5 -Whats the most popular form of_in this city?-Its hard to say. Maybe going to the movies is.A.en viro nmentB.en tertai nmentC.experime ntD.experie nee隨練 1.6 根據首字母提示或漢語提示填寫單詞。1. Im ready to do all th

20、ose thi ngs which are more c_2. After he was 60, his health was falli ng r_ .3. The Internet is a worldwide computer n_ .4. Her weight showed an i_ of 3kg in a mon th. She decided to lose weight心 自我總結課后作業隨練 1.4 -What-About 70%.A.perce ntageC.pof high school stude nts go to college?B. nu mberD.temper

21、atureaga in.5. How many_6. Can fish live without_ （7. The Earth is one of the（8. Look! A model ship is_ （乘客）can thebus hold each time?氧氣）?行星）that travel around the sun.漂浮）on the lake.1012the wind and sand from moving to the rich作業 4 根據漢語提示完成句子。1.你們地區人口增長得快嗎？Is the populati on in your area_?2.我家離學校 1

22、0 公里遠。My home is ten kilometers_school.3.我們同意他們的決定。We are_ with their decisi on.4.我的包的款式和他的類似。The style of my bag is_of his.5.人類正在考慮移民去別的星球？Are huma ns_ to ano ther pla net作業 5- Are you willing to live on Mars one day?-_. It sounds excit ing, but it still worries me.A.Of course I am.B.rm not sure.C.

23、Why n ot?D.Are you jok ing?作業 6- The documentaryA Bite of Chinais quite popular around China recently.How do you like it?A.I think soB.Pretty goodC.It s my pleasureD.All right作業 1 The Great Green Wall canland in the south of China.A.preve ntC.provideB.protectD.promise作業 2 I dont feel like_ now. I pr

24、efer to have a walk after supper.A.walkB. walki ngC.walksD. to walk作業 3 -What do you think of the environment here?-Wonderful!of the land covered with trees and grass.A.Two fifths; isB. Two fifth; isC.Two fifths; areD.Two fifth; are答案解析:J込題模精選題模一：Un it 4 詞匯應用例 1.1.1【答案】B【解析】 考查動詞辨析，句意：-現在食品安全已成為社會焦點

25、。-那就是為什么制定關于阻止食品犯罪的法律，prevent意為“阻止”，符合句意。故選 B。例 1.1.2【答案】 1). worki ng hard to2). am sure【解析】 考查本課詞匯的應用，需注意聯系語境、時態、人稱的數及名詞的單復數。題模二：語法-簡單句和復合句的轉換例 1.2.1【答案】C【解析】 考查固定搭配，第一空考查stop doing sth，意為“停止做某事”；第二空后heavyrain是名詞短語，須用because of。故選 C。例 1.2.2【答案】 1). We can t do it without your help.2). The pia nist

26、 bega n to lear n to play the pia no at the age of four.3). Are you sure about their in terest in it?【解析】 考查本課語法的應用，需注意聯系語境、時態、人稱的數及名詞的單復數。人碇隨堂練習隨練 1.1【答案】C1014【解析】 考查介詞，前空考查by the way,意為順便說/問一下”;后空考查in someways,意為“在某些方面”。故選 Co隨練 1.2【答案】B【解析】 考查形容詞辨析，un comfortable意為“不舒服的”，符合句意。故選 B。隨練 1.3【答案】B【解析】 考查形容詞辨析，由“孩子們很喜歡”可知是tasty cakes and biscuits