Unit 2 Crossing Limits Reaching out across the ocean Read the text carefully and answer the followingquestions:1. In the Han Dynasty, who traveled over land to theEast Roman Empire? 2.Between the Han and early the Tang Dynasty, which Part of Africa developed into the world trade centre?3. During the Tang Dynasty which traveler wrote Record of My Travels?4. Before the Song Dynasty which means of transport did Chinese travelers mainly use?5. In the eleventh century, who made several voyages to the court of the Song Dynasty?Gan YingSwahili kingdoms and the islands off the African coastDu HuanOver landThe AfricansPeriodNameWay of travelGoodsAncient timesHan DynastyTang DynastyMing DynastySilk RoadSpices, glassGan Yingover landrhinoceros hornDu Huan over land/ by boatZheng He by boatzebras, giraffes,ivory, rhinoceros horns, shellsLanguage points:1. search for 寻找 ; 搜寻e.g. The police searched the woods for a lost child.search + 被搜的对象 + for + 寻找的目标2. long before before long很久以前不久以后____________ this used to be a wild land.____________ your dream will come true.Long beforeBefore long3. contact n. 接触 ; 交往 ; 联系have contacts with 与……有联系get in contact / touch withkeep in contact / touch withbe out of contact / touch within search of 寻找 ; 寻求search into 调查 ; 探究与……取得联系与……保持联系与……失去联系4. lead to 导致 ; 通向+ doingto 为介词的动词短语 :look forward to 期盼 ; 期望 refer to 提到 ;谈到pay attention to 注意 stick to 坚持draw one’s attention to 注意 object to 反对contribute to 为…做贡献 belong to 属于be used to 习惯于 take to 开始从事于get close to 接近于 see to 负责 ;注意devote … to 致力于 go down to 开始做5. in the + 序数词 + century 在……世纪 in the 1990s / 1990’s 在 20 世纪 90 年代 in the early / mid / late 1990s / 1990’sin 1995 在 1995 年in + 年份 在……年in + one’s + 基数词的复数形式 在某人多少岁时e.g. in my twenties6. reach v. 达到 ; 延伸 ; 伸出手 ( 或脚 );e.g. He reached out for the dictionary.I can’t reach that book.Your letter reached me this morning.above / beyond one’s reachout of one’s reachwithin one’s reach( 人的 ) 手或能力所不能及之处在 ( 某人 ) 的手所不能及之处在 ( 某人 ) 的手或能力所能及之处e.g. The price is within my reach. 7. date from 追溯到 ;( 从某一时代 ) 开始 =date back toe.g. This custom can date back to the 16th century. 8. in return 作为回报e.g. If you give me your photo, I’ll give you mine in return.in return for 作为……的报答;作为……的交换 e.g. He didn’t except anything in return for his help.Sentence pattern:It is well known that… 众所周知……e.g. It is well known that Sanya is a beautiful city.