八年级英语上册Unit7WillpeoplehaverobotsSectionB词汇点睛素材.docx

Unit 7 Will people have robots词汇点睛一、基础词汇1.宇航员 2.公寓 3.火箭 4.太空站 5.甚至 6.仆人 7.危险的 8.已经 9.工厂 10.简单的 11.相信 12.不同意 13.落下 14.可能 15.不可能 16.一方 17.或许,大概 18.假期 19.在期间 二、重点词汇讲解。1.even(1)even为副词“甚至,更”，后面可接形容词的比较级。Eg: Bob is very tall, Tom is even taller than Bob.(2)even还可和“if”连用构成词组“even if”,相当于“even though”意为“即使”。 Eg: Well go even if he doesnt come.2.dangerous dangerous为形容词“危险的”，其名词形式是danger,构成词组“in danger”在危险中，“out of danger”脱险。 Eg: Tigers are dangerous animals. The doctor said that his father was out of danger.3.already already为副词“已经”，通常用于现在完成时放在肯定句里，否定句和疑问句中要用yet. Eg: A: Have you finished your work yet? B: Yes, I have finished already.4.hundreda of(1)hundreds of意为“成百上千的，数百的”。Eg: There are hundred of boks in the library.(2)hundred(百)，thousand(千)，million(百万)等词前有具体数字时，其本身用单数形式，直接修饰名词，但“hundred”等词可以和“many, several, some”等表示不定数目的词连用并在后面接“of+复数名词”。 Eg: There are two hundred birds in the tree. She has several hundreds of camps.5.fall fall为动词“落下,跌落”，其过去式、过去分词分别为fell,fallen。常构成词组fall behind“落后”，fall off“从掉下来”，fall asleep“入睡”。 Eg: Study hard, or youll fall behind others. He fell off his bike and hurt his leg. 6.look for look for意为“寻找”，强调寻找的过程，“find”强调寻找的结果，其宾语常为表示人或物的名词或代词，“find out”强调发现的结果，宾语常指某种现象、结论或某个问题的答案。 Eg: Im looking for my pen, but I cant find it. Who found out the answer to this ques tion.7.be able to (1)be able to do sth有能力干某事，会干某事。Eg: Im able to swim.(2)be able to和can的区别：第一，can只能用于现在时和过去时态中，而be able to有多种时态;第二，be able to可用于不定式结构，而can不能;第三，表示猜测时，只能用can,不用be able to;第四，can无人称和数的变化，而be able to有。 Eg: People will be able to fly to the moon on vacation. Ann cant ride a bike, but we are able to do it.8. probably(1)probably为副词“或许，大概”，常位于行为动词之前，助动词、情态动词或系动词之后。Eg: You are probably right.(2)maybe, perhaps也为“也许”，一般放在句首。 Eg: Maybe/Perhaps he is a policeman. (3)may也许，放在谓语动词之前。 Eg: He may be a doctor.9.keep (1)keep动词“保持”、“饲养”Eg: Keep the classroom clean keep a dog.(2)keep可构成词组keep sb doing sth,让某人一直干某事，keep (on) doing sth一直不断