51 be made of 由……制成(制成以后還看得見原材料)

　　52 be not sure 表不確定

　　53 be on a visit to 參觀

　　54 be popular with sb 受某人歡迎

　　55 be quiet 安靜

　　56 be short for 表**的縮寫 eg： 陶 is short for 陶俊杰

　　57 be sick in bed 生病在床

　　58 be sorry to do sth be sorry for sb eg ： I am sorry for you

　　59 be sorry to hear that

　　60 be sorry to trouble sb eg ： I am sorry to trouble you

　　61 be strict in doing sth 嚴(yán)于做某事 eg ： He's strict in obeying noles

　　62 be strict with sb 對(duì)某人要求嚴(yán)格 eg： Some students are not strict with them selves 這些學(xué)生對(duì)自己不嚴(yán)格

　　63 be strict with sb in sth 某方面對(duì)某人嚴(yán)格

　　64 be supposed to do 被要求干什么

　　65 be sure 表確定

　　66 be sure of doing sth 對(duì)做某事有信心 eg： He is sure of winning I am sure of learning English well

　　67 be sure of sth 對(duì)做某事有信心 eg： I'm sure of my head (my teacher 我相信我的大腦(老師)

　　68 be sure that sth 對(duì)做某事有信心 eg： I'm suer that he can pass the test 我相信他能通過考試

　　69 be sure to do sth一定會(huì)做某事eg： We are sure to pass the test 我們一定會(huì)通過這次考試 We are sure to learn English well 我們一定能學(xué)好英語(yǔ)

　　70 be terrified of + 名/動(dòng)doing 害怕……

　　71 be terrified to do sth 害怕做某事

　　72 be the same as … 和什么一樣

　　73 be used to doing sth 習(xí)慣做某事

　　eg： My father is used to getting up early 我爸爸習(xí)慣早He is used to sleeping in class 他習(xí)慣上課睡覺

　　74 be worth doing 值得做什么

　　75 be(feel) afraid to do sth 害怕做某事be afraid of sth 害怕某物 be afraid that 叢句

　　76 because+句子 because of +短語(yǔ)

　　eg ： He was late because he had a headache He was late because of his headache

　　77 begin to do = start to do 開始做某事 start…with…=begin…with… 以什么開始什么

　　eg ： Let's begin the game with the song I begin to go home