Unit 2 Working the land1、Thanks to his research, the UN is trying to rid the world of hunger.由于他的研究，联合国正在使世界摆脱贫困。thanks to由于；多亏I was late for school thanks to the traffic jam.由于交通堵塞，我上学迟到了。Thanks to your help, Ive made great progress in English.多亏你的帮助，我在英语方面进步很大。相关链接because of，as a result of，due to，owing to，on account to这些短语都有“因为，由于”的意思。2、Using his hybrid rice farmers are producing harvests twice as large as before.用他的杂交水稻种子，农民种出比以前多一倍的粮食。twice as . as比多一倍；是的两倍
