而keep on doing 表示“总不断做某事”，不表示静止状态。不能与sitting、sleeping、lying、standing这类词连用。如：
It kept on raining for seven days. 雨持续下了七天
《英语教案－The football match(第3页)》出自：www.89xue.com网www.89xue.com 。
Don’t keep on asking such silly questions. 不要老问这些怪问题。
11. I expect that was funny. 我料想那是有趣的。
句中expect 是动词，意思是“认为；料想”是虚拟语气。如：
I expect that he went to town yesterday. 我以为他明天进城去。
— Will he be late ? — 他会不会迟到？
— I expect so. — 我想会的。
I don’t expect so. 相当于I expect not. 我想不会的。
12. …and it’s quite easy for players to get hurt．……运动员受伤是很容易的。
get, turn, become三个词都可作系动词用，表示状态的变化，后跟表语，但三个词的用法稍有不同。get强调情感、气候和环境的变化；turn强调色彩的变化；而become则强调职务、职称等的变化。如：
（1）The days are getting shorter and shorter in winter．
冬天的白天越来越短。
（2）She couldn’t answer the question and her face turned red．
她回答不出问题，脸红了。
（3）-- How long have you been a teacher？-- For ten years.
你当老师有多长时间了？十年了。
When did you become a teacher? – Ten years ago.
你什么时候当的老师？十年前。
教学建议（二）
过去完成时的教学建议 本书第54课中对过去完成时的结构已有阐述，本单元着重讲解过去完成时的使用场合。
讲解完成后，学生应能够对过去完成时有一个比较完整明确的概念。
1．教学by与before这两个介词所表达的时间概念
过去时表示在过去某一时刻或一段时间发生的动作，过去完成时则是表示过去某一时间
之前已经发生或完成的动作，即俗称的“过去的过去”。“by+某时”是“到了某时已经……”的意思；“before+某时”是“在……时以前”的意思。教学中可考虑创造些情景，并借助时
间轴来帮助理解。
情景l Jane was busy yesterday. She was working in her office all evening. Her friends Mary and Jack came to visit her. They were waiting in her house the whole evening. Jane finished her work at last. She came home at nine. But Mary and Jack had left her house before nine. They didn t see each other. What a pity!
此番情景可以用时间轴来表示， 在轴上标出说话时间，过去 (即Jane came home的时间)，过去的过去(即Mary and Jack left的时间)。将句子写在黑板上，并用彩色笔标出at与before两个词。
Jane came home at nine.
Mary and Jack had left her house before nine.
帮助学生理解at nine，在九点；before nine，九点前就…… (动词要用过去完成时)
情景2 Meimei and I were making dumplings for supper yesterday. We decided to have a contest to see who could make dumplings faster. We started our contest at 5 o clock and stopped it at 5 :15. At 5 :5, Meimei was making her 24th dumpling. By that time I had already finished 27 dumplings. I won!
上一页 [1] [2] [3] [4] [5] [6] [7] 下一页