1、1Unit 4 Why dont you talk to your parents单元语法专练Whydontyoudo.?句型句型“Why dont you do.?”意为“你为何不做呢?”,用于向对方提出建议或征求意见。语气较为委婉、客气,易于接受。通常可与“Why not do.?”互换。例如:I didnt have a good sleep last night,so I feel tired.昨天晚上我没有睡好,因此觉得很疲倦。Why dont you/not go to bed earlier tonight?你为何不今晚早点睡呢?连词 until,although 和 sotha
2、t 的用法1.until 的用法。(1)until 意为“直到为止”,用于肯定句,主句的谓语动词一般是延续性动词,如live,read,run,teach,talk,work,watch 等,表示这个动作一直延续到 until 所表示的时间为止。例如:I lived in this house until I was ten years old.我在这个房子里一直住到 10 岁。(2)until 意为“直到才”,用于否定句,主句的谓语动词一般是非延续性动词,如begin,come,go,leave,stop,start 等,表示这个动作直到 until 所表示的时间才发生。例如:I wont
3、leave until you come back.直到你回来我才会离开。2.although 的用法。although 意为“虽然;即使;尽管”,引导让步状语从句。同 though 用法相近,但though 可作副词,位于句末。although 和 though 一般都不与 but 同时使用。例如:Although/Though he is very old,he looks strong.虽然他的年纪很大,但他看起来还是很强壮。3.so that 的用法。(1)so that 意为“以便;为了”,引导目的状语从句,位于主句之后,从句中常用can,could,may,might 等情态动词。
4、例如:2Please open the windows so that you can breathe fresh air.请把窗子打开,以便你能呼吸到新鲜的空气。(2)so that 意为“因此;所以”,引导结果状语从句,从句中谓语动词根据需要使用相应的时态,主从句间可用逗号隔开。例如:She had not planned her time well,so that she did not finish her homework on time.她没把时间计划好,所以没按时完成家庭作业。.单项填空(A)1.It is difficult to remember and write the
5、Chinese traditional characters(繁体字), they are a great part of Chinese culture. A.but B.and C.or D.until(D)2.How do you like your new school,Kate?It is very clean and beautiful it is a bit small. A.if B.sinceC.unless D.although(D)3.Mom,could I watch the game show now?Sorry,you cant watch it you clean
6、 your room. A.when B.if C.after D.until(B)4.Our Chinese teacher didnt go to bed he finished his work last night. A.if B.until C.since D.because(A)5.Please speak loudly everyone can hear you. A.so that B.untilC.although D.but.用 until,although 或 sothat 填空31.We are not sisters although we look similar.
7、 2. Although she is only 14,she can make money to help her parents support the family. 3.The teacher didnt begin his new lesson until every one of us arrived. 4.Could you please explain the math problem so that we can understand it? 5.The old man put on his glasses so that he could see my face clear
8、ly. .用恰当的连词把下列简单句变成复合句,每空一词1.We had supper.My father came back.We didnt have supper until my father came back. 2.He runs quickly.He could get to the hotel on time.He runs quickly so that he could get to the hotel on time. 3.The boy jumps very high.He is not very tall.The boy jumps very high although he is not very tall. 4.He waited.She finished speaking.He waited until she finished speaking.
