Unit 11 1．Our school is l at the foot of a mountain. 2．We’ll make good use of s energy in the future. 3．As we know, the earth is divided into twenty-four time z , one hour separate. 4．F is the mother of success. 5．He put f a valuable suggestion at the meeting. 6．The clouds are gathering. It is l to rain. 7．A porter is a person whose work is to carry l at railway stations, airports and hotels. 8．Children r on their parents. 9．He is studying hard to receive a m degree. 10．Practice makes p . 11．He is studying in an (工程) department. 12．The inventor was rewarded by the government for his scientific (成就). 13．She called the (元素) radium. 14．He works in a (私立的) school. 15．Attention please, boys and girls, I have an (通知) to make. 16．Have you seen the film The Red River (溪谷，山谷)？ 17．He smokes the best (商标，牌子) of cigars. 18．When we speak, we must use the (器官) of speech, the tongue, teeth, lips, etc. 19．Scientists have made great contributions to (人类)。 20．Man has developed through slow (发展，演变). Unit12 1．M is in constant motion and constant change. 2．Holding flowers, the children warmly welcomed the foreign g . 3．If you have difficulties, please don’t h to let me know. 4．You’d better pay more a to listening and speaking when you learn a foreign language. 5．People may find it exciting to travel by b in the air. 6．Francis Bacon was a famous British p and writer. 7．The d between the two cities is 600 miles. 8．The w in the sea is in danger of dying out because of pollution. 9．They are on a v across the Atlantic Ocean. 10．Most of the students are l members. 11．Please draw the (窗帘). 12．The majority of men earn their living by...
