Unit 9 When was it invented?
ancient 在古代 in the ancient remain V. 留下，被遗留，剩余，保持不变 He will have to remain in hospital for at least 10 days. n. 残余物，剩余物，一般用复数
the remains of the picnic
remain 一作为动词 1、 “剩下”、“余下”、“遗留” Some of them have disappeared while others remain today． Only a few leaves remained on the tree. 2、remain “留下”、“停留”、“呆在”，相当于“stay” The children remained out because of the weather． When the others had gone, Joan remained (=stayed) to clean the room. The Smiths remained there all through the year. 二系动词：“保持”、“仍然是”，“依旧是”，后接形容词、名词、动词 不定式、现在分词、过去分词或介词形容词短语作表语，指某人或某事物仍保 持某种状态 Whatever achievements you’ve made, you should remain modest. Man remained a hunter for thousands of years． It remained a secret. Peter became a manager, but Jack remained a worker.
指某事尚待、有待于以后被处置，后面常接不定式的被动形式，表示 主 语是不定式的承受者。 A lot of work remained to be done． Many problems remain to be solved. It remains to be seen whether you are right. We will remain in regular contact with them． remain 做名词，一般用复数形式，表示“遗物”、“遗址”、 “剩余物” They found some remains of the Tang Dynasty. remaining 是形容词，“剩下的”、“余下的”，修饰单个名词作 定语，置于该名词之前作前置定语，与left同义，但后者必须置于被修 饰的名词之后作后置定语
notice作名词,意为“布告,公告,启事”,是可数名词 There is a notice on the office gate saying "No Parking". notice作名词,意为“注意”,是不可数名词 ①take notice of sb./sth.意为"注意某人/某物" ②take no notice of sb./sth.意为"不理会某人/某物" ③bring sth. to one's notice意为"使某人注意某事(物)“ ④come to one's notice意为"被某人看到、听到等" notice作动词,意为“注意到,留心,看到” notice sb. do sth.; notice sb. doing sth. notice sth. done
produce V. 生产，制造，产生 （过去式，过去分词 produced）
be active in 积极参加 Tom is active in attending all kinds of activities. create n. creation
1 Potato chips were invented by mistake. 2 They were invented in 1863. 3 Did you know that the tea, the most popular drink in the world (after water), was invented by accident? 4 Basketball was invented by a Canadian doctor named James Naismith, who was born in 1861. 5 The phone was invented in 1876.
被动语态的一般结构：be + 动词的过去分词
一般现在时的被动语态：is / am / are + 动词的过去分词
/ were + 动词的过去分词
现在完成时的被动语态：have / has +been + 动词的过去分词
1、 一般现在时的被动语态：am / is / are + 动词的过去分词 Our classroom is cleaned every day. This car is made in China. 2、一般过去式的被动语态: was / were + 动词的过去分词 His desk was cleaned just now. The station was built in 1928. 3、现在进行时的被动语态: am / is / are + being + 动词的过去分 词
A new factory is being built in our city now. Some trees are being cut down in the park. 4、过去进行时的被动语态: was / were + being + 动词的过去分
A new factory was being built in our city at that time. Some babies were being looked after by Miss Chen last year. 5、一般将来时的被动语态: (A) will / shall + be + 动词的过去分词 (B) am / is / are + going to be +动词的过去分词.
6、过去将来时的被动语态: (1).would / should + be + 动词的过去分词 (2).was / were +going to be + 动词的过去分词. She said that some new factories would be built soon in our city. He thought that your watch was going to be mended after an hour.
7、现在完成时的被动语态:have / has + been + 动词的过去分词 Some new factories have been built in the city since last year. Your watch has been mended already. 8、过去完成时的被动语态:had + been + 动词的过去分词 He said that some new factories had been built in the city. I didn’t know that my watch had been mended .
9、含情态动词的被动式：can/may/must + be + done 例如：He can not be found. / I must be paid for this.
1.We shall discuss the problem at tomorrow's meeting. 2.People will never forget the accident. (提示) the accident - will be - forget 3.They are repairing the car in the garage. (提示) the car - be being - repair 4.Someone must have turned on the light without your notice. (提示) the light - must have - be - turn on
1 Chinese ______ by the largest number of people． A．Speak B．is speaking C．speaks D．is spoken 2 The boy ______ to get supper ready after school． A．were told B．is telling C．was told D．tells
3 A lot of new roads ______ built in the west of China． A．must B．must be C．has D．have
4 This dictionary mustn‘t ______ from the library． A．take away B．taken away C．are taken away D．be taken away
1．be covered with被……覆盖 2．be made of由……制作（发生物理变化） be made from由……制作（发生化学变化） be made in由（某地）制造 be made by被（某人）制造 3．be used for被用来…… be used as被当作（作为）……来使用 be used to do sth．被用来做某事 4．It is said that．．．据说…… It is hoped that．．．希望…… It is well known that．．．众所周知……