英语四级全套模拟试卷P art Ⅰ Wri t ing (答题时间 30 分钟)Direct i ons: For this pa rt, you a re a ll owed 30 min u tes to w rite a posit io n o n t he t opic S e lectin g Cour ses、 You s hould w r ite at l eas t 1 2 0 w or ds acco r d i ng to t h e ou t l ine given bel o w i n Ch in ese:1、 选修课程在大学很普遍2、 解释其中得原因3、 您得瞧法Part listeⅡn in g p re he n sionS ec t i o n A (th r ee news reports)略Sect ion B (two l on g c o n v ers a tio n s)略Se c t i o n C (t h re e pa ssag es)略P a rtⅢ rea di ng prehens io n(答题时间共 40 分钟)Sectio n AEI N In o i s n am e gi v en to t he m asterious and o f ten unpred i c table change in th e c l i m ate of the wo rld、This s tran g e __1__ happ e ns every fi ve t o eight ye ar s、It sta r ts in t he PAa c if i c Ocean a n d i s th oug ht t o be cause d by a fai lu re i n t h e tra d e winds(信风),whic h a f fects the oc ean cu rr e nts d r iven b y th e s e wi nd s、 A s th e tr a de w i nd s les s e n in __2__, t h e o cea n pe r atures rise causin g th e Peru cu r rent fl owing in form t h e e ast t o w ar m u p by a s m uch as 5°C、T he w arm i ng of the ocean has f a r-r ea c h in g e ff ects、Th e ho t,h u mi d(潮湿得)air ov e r t he ocea n ca u ses s e vere __3__ thu n der s torms、Th e r ai nfall is i n cr eased acr ossAoun t h Am e rican __4__ floods to Pe ru、In th e W e st pa cific,t...