八年级英语上册第七单元重要知识点汇总（人教版）.doc

八年级英语上册第七单元重要知识点汇总（人教版） 八年级英语上册第七单元重要知识点汇总（人教版） 短语： on computers on paper live to be 200 years old free time in danger on the earth play a part in sth space station look for computer programmer in the future huandreds of the sameas over and over again get bored wake up look like fall down 用法： will + 动词原形 将要做 fewer/more + 可数名词复数 更少/更多 less/more + 不可数名词 更少/更多 try to do sth. 尽力做某事 have to do sth 不得不做某事 agree with sb. 同意某人的意见 such + 名词(词组) 如此 play a part in doing sth 参与做某事 make sb do sth 让某人做某事 help sb with sth 帮助某人做某事 There will be + 主语 + 其他 将会有. There is/are + sb. + doing sth 有正在做 It is + 形容词 + for sb + to do sth 做某事对某人来说的 What will the future be like? Cities will be more polluted. And there will be fewer trees. Will people use money in 100 years? No, they wont. Everything will be free. Will there be world peace? Yes, I hope so. Kids will stuffy at home on computers. They wont go to school. Countable nouns Uncountable nouns There will be more people. There will be more pollution. There will be fewer trees. There will be less free time.1. every 与 each 的区别： every 用来表整体，each 用来表个别。each 最低需是两，every 最低需是三。every adj. every 作主用单数，each 可单也可复，作主、作定用单数，其他情况用复数。 each adj./ pron. Every teacher knows her. There are lots of trees on each side of the road. Each of the road has a dictionary. 2. on the earth 在地球上，作地点状语，位于句首或句末。 on earth 究竟，到底。用于疑问句或副词后，加强语气。 All the living things on the earth depend on the sun. / What on earth do you mean? 3. human, 指包括男人女人孩子的“人，人类”，有别于动物，自然景物，机器等的特殊群体，也可指具体的人。 person, 无性别之分，常用于数目不太大，而且数目比较精确的场合。 people, 泛指“人们”，表示复数概念。 man,前不带冠词而且单独使用时，指“男人”，a man 可指“一个人/ 一个男人”，复数形式为men. He was the only human on the island. There are only three persons in the room. There are many people there. Man is stronger than woman. 4. seem 连系动词，好像，似乎，看来。有下面几种用法： seem + 名词 看起来。He seems a nice man. seem like 好像，似乎。 It seemed like a good idea at the time. seem to do sth. 似乎/看起来/好像做某事。 I seem to have left my book at home. It seems/seemed that 看起来好像, 似乎. He was very happy. seem to be + 形容词/名词 = seem + 形容词/名词。 She seems to be happy.= She seems happy. 5. probably ad. maybe 相当于 perhaps. 也许，大概，可能。作状语. probably 用于句中，可能性最大。 He will probably come tomorrow. maybe/perhaps 用于句首。 Maybe/Perhaps you are right. 1. during / for / in 介词，在期间。说到某事是在某一段时间之间发生的用during; 说到某事持续多久则用for; 说到某事具体发生的时间用in. We visited many places of interest during the summer holiday. Ive been here for two weeks. They usually leave school in July. 一般将来时结构： 肯定式： 主语 + will/shall + 动词原形 + 其他 will 用于各种人称，shall 用于第一人称。 主语 + be going to + 动词原形 + 其他 be 随人称、数和时间的变化而变换。 否定式： 在will/shall/be 后面加 not. will not = wont . 一般疑问句： 将will/shall/be 提到主语前面。 There be 句型的一般将来时： There will be + 主语 + 其他 ，意为 ：将会有。一般疑问句形式为： Will there be + 主语 + 其他。 肯定回答是： Yes, there will. 否定回答是： No, there wo