人教高中英语版选修7unit2robotssection2课件

人教高中英语版选修7unit2robotssection2课件内容摘要：

to his bedroom. • A． why B． that • C． when D． where • 答案： B 句意为：确保门关上了，且所有的灯都关上了之后，那个男孩打开门进了他的卧室。 checked后跟了两个宾语从句，第一个从句的引导词 that省略了。 • 2． She planned to write a few every afternoon because from then on until Christmas her time would be anized into shopping, cooking as well as writing the cards. • 她计划每天下午都写几张卡片。 因为从那时起直到圣诞节，她的时间都安排在了购物、做饭和写卡片上。 • 本句是一个主从复合句，含有 because引导的原因状语从句； from then on until Christmas在从句中充当状语， shopping, cooking, writing the cards为并列宾语。 as well as意为 “ 除 „„ 之外 (还 )，也，和 ”。 • from then on表示 “ 从那以后 ”“ 从那时起 ” ；它是一个固定短语，用作时间状语。 如： • From then on, he never spoke to me. • 从那时起，他没有同我说过话。 • From then on, no one killed a seagull. • 从那以后，没有人捕杀海鸥了。 • from now on表示 “ 从今以后 ” ，也是一个用作时间状语的固定短语。 如： • From now on, I will do morning exercises every day. • 从今以后，我每天都要做早操。 • 活学活用 • 翻译句子 • 从那时开始，他先在一家汽车厂工作，然后在一家钢厂任工程师，当时那是一家最大的钢厂，后来又到了一家生产电脑的公司任总裁。 • ______________________________________________ • ______________________________________________ • 答案： From then on, he first worked in a car factory, then as an engineer in a steel factory, which was the biggest one at that time and later as president of a pany producing puters. • 被动语态和动词不定式的被动形式 • 英语中动词有两种语态：主动语态和被动语态。 主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。 汉语中常用 “ 被 ”“ 给 ”“ 由 ”“ 受 ” 等词来表示被动，而英语中由 “ 助动词 be＋及物动词的过去分词 ” 构成。 • Ⅰ .各种时态的被动结构 • 一般现在时、一般过去时、现在进行时、过去进行时、现在完成时和过去完成时的被动结构是考查重点。 被动语态的时态、人称和数的变化主要体现在 be的变化上，其变化形式与系动词 be的完全一样。 以 do为例： 项目 一般时态 进行时态 完成时态 现在 am/is/are done am/is/are being done has/have been done 过去 was/were done was/were being done had been done 将来 shall /will be done 无 shall/will have been done 过去将来 should/would be done 无 should/would have been done • Everyone39。 s pay will be increased next year by 5%. • 明年每人的工资将增加五个百分点。 • It was the first time that I had been criticized in public. • 那是我第一次在公众场合挨批。 • The work will have been finished by the end of next month. • 到下月底前这项工作将会完成。 • The house is quite old. It was built in 1950. • 这座房子很古老了。 它是 1950年建造的。 • 典题赏析 • (1)(2020天津 11)We won39。 t start the work until all the preparations ________. • A． are being made B． will be made • C． have been made D． had been made • 答案： C 考查时态和语态。 句意：直到一切准备就绪，我们才开始工作。 until从句中要么用现在完成时表示动作的完成要么用一般现在时表将来。 the preparations 与 make之间是逻辑上的动宾关系，故选 C项。 • (2)(2020辽宁 30)We are confident that the environment ________ by our further efforts to reduce pollution. • A． had been improved B． will be improved • C． is improved D． was improved • 答案： B 考查时态和语态的用法。 句意：我们很自信，通过我们进一步的努力来减少污染环境将会得到改善。 由句意可知，应该用一般将来时的被动语态，故 B项为正确答案。 • (3)(2020北京 23)Shakespeare39。 s play Hamlet ________ into at least ten different films over the past years. • A． had been made B． was made • C． has been made D． would be made • 答案： C 本题考查动词时态语态。