1、Unit 20 Communication workshop,Space:The Final Frontier,Reading,Exercise 1 Match these headings with the paragraphs(A-F),Recent Interest Early space exploration Introduction Conclusion Into deep space Chinas contributions,A B C D E F,Exercise 2:,The space age kicked off when they sent up Sputnik1.,T

2、he age of space exploration began in 1957,when Sputnik 1 was launched by the Soviet Union.,The final part of early space exploration was the moon landing.,Which ended with the US putting a man on the moon in 1969.,Space exploration is in again because of that new telescope.,Its so good that its foun

3、d loads of new planets,Theyre going to launch robot ships to fid places like Earth.,Recently ,there has been another burst of interest in space as a result of the Hubble Telescope,Because of its precision, over fifty new planets have been located beyond our solar system,Further space probes, such as

4、 deep Space, will be sent out in order that they might detect small earth-like planets where there might be life.,exercise 3,1.We have left our mark everywhere.,2. All four corners of the globe.,3. The number of manned flights dropped off.,4. Its a stepping stone.,5. The skys no longer the limit.,Sh

5、own weve been,All over the world,decreased,A stage on the way,The possibilities are endless,Exercise 4 Classify the linking words underlined in the text as a or b.,Answers:,a)reason:explains the cause of an action 2.as a result of 7.Because of 6.in case 8.as 10.due to,b)purpose:shows the aim of an a

6、ction 3.so that 4.for 5.so as to 7.in order that 9.in order to,Linkers followed by modal verbs:so that,in order that, So as to,exercise 5,Exercise 5 Answers:,1.it rains 2.you can swim in the river 3.the fog 4.we can contact you 5.my aunt 6.check he;s in 7.the nights are very cold 8.your student visa

7、,Language points,1.on the other side of 2.spread out 張開, 伸開, 鋪開, 擴大張, 展開, 伸長 3.all over the world 4.by the beginning of the 21st century 5.in all four corners of the globe,6.the age of space exploration 7.take place v.發(fā)生 8.end with以.結(jié)束 9.the number of 10.as a result of adv.作為結(jié)果,11.so that 12.suchas

8、13.so as to. adv.使得, 以致,如此.以致于 14.in case conj.萬一 15.in order that,16.send out v.發(fā)送, 派遣, 放出 17. contribution to 18. in order to 19. due to adv.由于, 應(yīng)歸于 20. keep doing sth,21.in conclusion adv.最后, 總之 22.as long as只要, 在.的時候 23.no longer adv.不再,神舟飛船飛行程序組圖,一.飛船和運載火箭在技術(shù)廠房按垂直組裝和垂直測試的一系列 程序完成技術(shù)準(zhǔn)備工作后，整體垂直運輸?shù)?/p>

9、臍帶塔，并進行最 后的功能檢查。,第一步： 準(zhǔn)備就緒,第二步：火箭發(fā)射,一切準(zhǔn)備就緒后，火箭一級發(fā)動機及4個助推器同時點火。,第三步：程序轉(zhuǎn)彎,火箭升空，開始程序轉(zhuǎn)彎。,第四步：拋逃逸塔,火箭繼續(xù)飛行，拋掉逃逸塔。,第五步：拋助推器,助推器分離,第六步：整流罩分離,火箭一級二級分離，整流罩分離,第七步：船箭分離,二級發(fā)動機關(guān)機，隨后船箭分離,第八步：展開帆板,飛船入軌。入軌后，飛船捕獲地球，建立軌道運行姿態(tài)， 展開太陽電池帆板并對太陽定向。,第九步：測控站對飛船監(jiān)控,飛船入軌一段時間后，地面測控系統(tǒng)提供初始軌道數(shù)據(jù)， 并通過測控站和測控船對飛船監(jiān)控。,第十步：按預(yù)定軌道飛行,飛船按預(yù)定軌道環(huán)繞

10、地球飛行。,第十一步：飛船接受發(fā)射信息,飛行一周約90分種。當(dāng)飛船進入海陸測控區(qū)時，飛船上的 設(shè)備開機工作，發(fā)射遙測信息，接收遙控信息。,第十二步：飛船調(diào)姿1,在海陸測控區(qū)外，短波通信機工作。飛船在環(huán)繞地球飛行規(guī)定 的圈數(shù)和完成科學(xué)試驗任務(wù)后返回，在返回前由地面站和測量 船發(fā)出調(diào)姿指令。,第十三步：飛船調(diào)姿2,在海陸測控區(qū)外，短波通信機工作。飛船在環(huán)繞地球飛行規(guī)定 的圈數(shù)和完成科學(xué)試驗任務(wù)后返回，在返回前由地面站和測量 船發(fā)出調(diào)姿指令,第十四步：軌道倉與返回倉分離,軌道艙與返回艙分離。,第十五步：推進倉與返回倉分離,建立返回制動姿態(tài)。飛船制動進入返回軌道，返回艙降低至 140公里的高度時，推進

11、艙與返回艙分離,第十六步：進入黑障區(qū),在降至100公里時，返回艙進入再入姿態(tài)調(diào)整，約80公里時， 返回艙再入稠密大氣層。,第十七步：出黑障區(qū),進入黑障區(qū)后，通信中斷，約40公里高度時，出黑障區(qū)， 通信恢復(fù)。,第十八步：拉出引導(dǎo)傘,在返回艙再入大氣層后，著陸場地面雷達站和測量站跟蹤捕獲目標(biāo)，測量返回軌道， 預(yù)報返回艙著陸點。在約10公里高度時，返回艙拋撒艙蓋，拉出引導(dǎo)傘和輔助引導(dǎo)傘。,第十九步：拉出減速傘,拉出減速傘。,第二十步：拉出主傘,減速傘分離，拉出主傘。,第二十一步：拋防熱板,主傘張開，拋返回艙防熱大底。,第二十二步：緩沖發(fā)動機工作,返回艙從斜吊掛狀態(tài)改為垂直吊掛，當(dāng)下降到離地面約1米 左右高度時，著陸緩沖發(fā)動機工作