1. [望文生義]根據(jù)所學詞根的知識推測下列單詞的詞義。
recycle v.&n.
2. [尋根問底]指出下列單詞的詞根并領會其詞義的由來。
① cycloid a.圓形的；圓狀的
② cyclist n.騎自行車的人
③ encyclic a.普遍傳送的
④ encyclical n.通諭；通告
⑤ anticyclone n.反氣旋
⑥ cyclopaedia n.百科詞典；百科全書
⑦ cyclorama n.圓形連續(xù)畫景
⑧ megacycle n.兆周（提示：mega=million）
3. [節(jié)外生枝] cyclo-可作為術語前綴，表示“圓的”，“環(huán)狀的”。請分析下列單詞詞義與“圓”，“環(huán)”的關系。
① cyclograph n.全景電影攝影機；圓弧規(guī)
② cyclometer n.車輪轉數(shù)記錄器
③ cyclostome n.圓口類脊椎動物
④ cyclothymia n.循環(huán)性精神病
⑤ cyclotron n.原子能回旋加速器
25. dem [GK]=the people人民
dem源于希臘名詞demos，意思相當于the people（人民）。在添加后綴時，它常帶有連接字母-o-，可以把demo當作dem的異體。
democracy [demo=the people人民；-cracy n.=power權力→rule or ruling body統(tǒng)治，政體→“rule or ruling body by the people人民的統(tǒng)治或政權”→] n. government by all the people;society characterized by recog-nizing the equal rights of all the people民主政權；民主社會
democrat [demo=the people人民；-crat n.=supportor of a government某種政體的支持者→“supportor of a government by all the people人民政權的支持者”→] n. supportor or advocate of democracy民主主義者
▽democratism [democrat;-ism n.] n.民主主義
democratic [democrat;-ic a.] a.民主主義的；民主政體的
democratize [democrat;-ize v.] v.使民主化
demos [demos=the people人民→] n. the people;the populace人民，民眾；大眾
▽demotic [dem(os);-otic a.] a.民眾的；通俗的
demography [demo=the people人民→the population人口；-graphy n.=writing著作→recording and study記錄與研究→“the recording and study of the population對人口的記錄與研究”→] n. the study of statistics of births, deaths, disease, etc.人口統(tǒng)計學
▽demographic [demograph(y);-ic a.] a.人口統(tǒng)計的
demographer [demograph(y);-er n.] n.人口統(tǒng)計學者
demagogue [dem=the people人民；agogue=leader引導者→“leader of the people民眾領袖”→] n. political agitator appealing to desires of the mob蠱惑民眾的政治鼓動家
▽demagogic [demagog (ue);-ic a.] a.蠱惑的；煽動的
demagogism [demagog(ue);-ism n.] n.煽動；煽動主義
demagogy [demagog(ue);-y n.] n.煽動；煽動性宣傳
epidemic [epi-=upon在……之上；dem=the people民眾；-ic a.=being……的→“being upon the people 發(fā)生在民眾身上的”→] I a. prevalent among the people in a certain place at a certain time流行性的：Polio was once an epidemic disease.小兒麻痹癥曾是一種流行性傳染病。→Ⅱn. epidemic disease流行?。簍o prevent epidemics預防流行病
endemic [en-=in在……之中；dem=the people人民；-ic a.=being……的→“being in the people of a certain area存在于某個地區(qū)民眾中的”→] I a. prevalent in a particular area or nation某地（或某種人）特有的，地方性的：Cholera was an endemic disease in India.霍亂曾是印度特有的地方病。→Ⅱn. disease of an endemic nature地方性流行??；風土病：Some endemics have become epidemic diseases in the world.有些地方性疾病已變成世界性的流行病。
▽endemicity [endemic a.;-ity n.] n.地方性；風土性
pandemic [pan-=whole全，遍；dem=the people人民；-ic a.=pertaining to……的→“pertaining to the whole people涉及全民的”→] a. prevalent over the whole of a country or the whole world流行全國（或全世界）的：a pandemic influenza世界性流感
