1、Table of ContentsUnit OneWorld1Unit TwoPolitics19Unit ThreeThe United Kingdom35Unit FourThe United States53Unit FiveBusiness67Unit SixEntertainment82Unit SevenSp0rts97Unit EightTechnology114Unit NineScience130Unit TenEnvironment146Unit ElevenHealth。163Unit TwelveEducation177Unit ThirteenLanguage192U
2、nit FourteenLifestyle206Unit FifteenOpinions221Keys to Exercises236Bibliography240UnitneWorldTopics for pre-reading discussions1.What do you know about the relationship between the U.S.and North Korea?2.Why does the U.S.urge North Korea to scrap its nuclear program?Text AU.S.-North Korea summit:Trum
3、p,Kim Jong Un sign unspecifieddocument after hours of talksSINGAPORE-After more than a half-century of hostility between their twocountries,President Trump and North Korean leader Kim Jong Un signed adocument Tuesday pledging to work toward complete denuclearization of theKorean Peninsula,but provid
4、ed few details of how that might work.Were starting that process very quickly,Trump said during a brief signingceremony,again providing few specifics following a day of ceremony and bonhomiewith his former rival Kim.The statement of renewed U.S.-North Korean cooperation capped a four-hour-plussummit
5、 in which Trump and Kim had nothing but nice things to say about each otheras they finally came face-to-face.The summit comes less than a year after the pairthreatened each other with nuclear annihilation.Throughout the day,Kim refused to answer questions about whether he would bewilling to give up nuclear weapons in exchange for economic assistance.Still,Trump claimed success by saying that we had a really fantastic meetingat
