新外研版八年级英语下册重点知识点总结

1 外研版八年级英语下册重点知识点外研版八年级英语下册重点知识点 Module 1 语法语法 系动词 一是 be am is are been was were 一觉得 feel 一好像 seem 一保持 keep 三变化 turn become get 四起来 smell sound look taste 后跟形容词 知识点知识点 1 would like want would like to do sth want to do sth 想要做某事 would like sb to do sth want sb to do sth 想要某人做某事 would you like 其后用 some 不用 any 句子 Would you like to do sth 肯定回答 Yes please sure thanks Yes I d like to Yes I d love to 否定回答 No thanks Sorry I m afraid I can t 2 try to do sth 尽力做某事 试图做某事 设法做某事 但不一定成功 否定式 try not to do sth try doing sth 试着做某事 看看会发生什么情况 have a try 试一试 3 a bit 与 a little 1 两者修饰动词 形容词 副词或比较级 2 a little 可以直接修饰不可数名词 相当于 a bit of 4 have a try 试试看 have a look 看一看 have a headache 头疼 have a rest 休息 have a meeting 开会 have a good time 玩得愉快 have a fever 发烧 5 lots of a lot of 很多 大量 常用于肯定句中 既可修饰可数相当于 many 又可修饰不可数 相当 于 much a lot 相当于 very much 多与动词连用 修饰形容词 副词的比较级 2 6 提出建议 1 Let s do sth 让我们做 吧 2 How about what about doing sth 做 怎么样 3 Why not do sth 为什么不 4 Would you like to do 你愿意做 吗 5 Shall we do 我们做 好吗 6 You d better not do 你最好 不 做某事 7 Thanks for sth Thank you for sth 因 而感谢 后 V ing Thanks to 幸亏 由于 归功于 8 leave a message 留个口信 take have a message for sb 给某人带个口信 9 hear from sb get receive a letter from sb 收到 的来信 hear about of 得悉 听说 Hear out 听完 hear to 同意 10 can t wait to do sth 迫不及待做某事 wait for 等候 后接等待的对象 名词或代词 wait to do sth 等着做某事 11 三到达 arrive at 小地方 arrive in 大地方 get to reach 注意 跟 home here there 等副词时 不加介词 12 quite 相当 很 相当于 very 区别 quite a quite an 而 very 只能放在 a an 后 13 with 有 带有 和 一起 使用等 反义词 without 14 lovely 令人愉快的 可爱的 修饰人或物 a lovely afternoon girl 3 lively 活泼的 生动的 a lively lesson 一堂生动的课 16 四个花费 take It takes sb some time to do sth It took sb some time to do sth Spend Sb spend some time money on sth Sb spend some time money in doing sth Pay Sb pay some money for sth cost sth cost sb some money 17 四个也 as well 肯定 句末 不用逗号 too 肯定 句末 逗号可有可无 either 否定句末 also 肯定句中 行前 be 后 18 proud adj be proud of 为 而感到骄傲 be proud to do sth 做某事很自豪 pride n take pride in 为 感到自豪 the pride of 的骄傲 19 How do you feel about 对 感觉如何 与 How do you like 20 at first 起初 开始 常位于句首或句末 反义词 at last 最后 终于 first of all 首先 用作插入语 说明顺序 后接 next then at first 指刚开始做某事的时候 暗示后来 的情况有所改变 21 few a few 修饰可数名词 little a little 修饰不可数名词 有 a 表示有 没有 a 表示没有 4 22 way 的短语 in this way 用这种方式 in the right way 用正确的方法 the way of 做 的方式 on the way to 在去 的路上 by the way 顺便说一下 23 be afraid of 害怕 后接名词 代词或动名词 be afraid to do sth 害怕做某事 24 each other 互相 25 be nervous about 对 感到紧张 26 问外貌 What do does did 主语 look like 问性格 What be 主语 like 27 be friendly to sb 对某人友好 28 be good at do well in 擅长 后跟 doing sth 或名词 29 shake hands with sb 与某人握手 30 be good for 对 有好处 反义 be bad for 对 有害 31 help sb with sth 在某方面帮助某人 help sb do sth 帮助某人做某事 32 make a lot of noise make much noise 发出很多噪音 书面表达书面表达 写一篇文章介绍你的网友 内容包括 1 来自于澳大利亚的悉尼 2 年龄 15 岁 3 外貌 很瘦 眼睛很大 头发长且卷曲 4 性 格 很友好 很外向 5 爱好 读书 上网与朋友聊天 注意 词数 70 左右 I have a net friend She is from Sydney Australia The girl is fifteen years old She is thin with two 5 big eyes She has long fair hair She is friendly and outgoing She always has a big smile on her face She likes reading and chatting on the Internet with her friends She said that reading made her grow up as a person I feel very happy when I chat with her I like my net friend very much I hope I can go to Sydney to see her one day Module 2 语法语法 现在完成时 表过去发生或已经完成的某一动作 对现在造成的影响和结果 或持续到 现在的动作 常用词语 already yet ever never just before for some time since 1 表示某人的经历以及过去发生的动作对现在造成的影响 或结果 常与 recently ever never already yet just before 连用 2 表示发生在过去并且一直持续到现在的动作或状态 常与 for 时间段或 since 时间点连用 结构 have has 过去分词 动词的过去式及过去分词在末尾加 ed 规则是 1 直接加 ed 2 以 e 结尾的 加 e 3 以辅音字母加 y 结尾的 变 y 为 i 再加 ed 4 重读 末尾辅元辅 双写这个辅音字母 再加 ed 5 不规则变化 知识点 知识点 1 enter 参加 加入 进入 相当于 join 或 go into 2 maybe perhaps 大概 也许 放句首 3 win 后接 war match game beat 打败 击败 后跟人 打败某人 赢得比赛 4 ever 用于疑问句时 其答语如果表示否定 用 never 回答 6 5 before 以前 从过去起的若干时间以前 距过去某时 以前 常和完成时连用 ago 从现在起的若干时间以前 跟今 以前 常用于过去时态中 6 go on a holiday 去度假 强调动作 be on a holiday 也表示去度假 强调状态 7 afford 买得起 付得起 常与 can could be able to 连用 8 stop doing sth 停止做某事 正在做的事不做了 不做 stop to do sth 停下来 正在做的事 去做某事 另一件事 要做 9 what a pity That s a pity 多遗憾啊 10 think of 想起 起出 认为 think about 思考 考虑 两者区别 1 当表示 想起 想出 时 两者可以互换 2 当 think of 表示 认为 时 不能用 think about 3 当 think about 表示 思考 研究 时 不能用 think of 11 thanks for thank you for 名词或动词 ing 因 而感谢你 Thank you for helping me 13 invite sb to do sth 邀请某人做某事 invite sb to someplace 邀请某人去某地 14 at the moment 此刻 现在 常与一般现在时或现在进行时连用 at that moment 在那时 常与一 7 般过去时连用 15 one of 形容词最高级 名词复数 最 的之一 动词用三单形式 16 send sth to do sth send sb sth 把某物寄给某人 17 5 the 姓氏 s 一家人 夫妇 其作主语时 谓语动词用复数形式 The Smiths are having dinner now 18 1 have been to some place 去过某地 已回 后接 once twice three times 等表次数的词 短 语 也可与 just never ever 连用 但不能与时间连用 2 have gone to 到某地去了 去了未回 3 have been in 已经在某地待了多长时间 常与一段时间连用 19 on in at 时间表达的用法 on 用于具休的某一天 及对早中晚进行了修饰后也用 on in 用于年月季节 一段时间 以及单独的早中晚 如 in the morning in the afternoon in the evening at 用于具体的时刻 几点 及一些固定搭配 20 ancient 古老的 古代的 反义词 modern 现在的 当代的 21 be different from 与 不同 其反义 the same as 与 一样 22 find it 形容词 to do sth 发现做某事是 的 8 23 mix up 混淆 拌和 调和 mix with 和 混合 24 ask sb to do sth 要求某人做某事 ask sb not to do sth 要求某人不做某事 25 ask sb about sth 询问某人关于某事 ask sb for sth 向某人要某物 ask for help 寻求帮助 26 count down 倒数 倒计时 27 sth happened to sb 某人发生了某事 sb happen to do sth 碰巧做某事 28 all over the world 遍及世界 29 around the world 整个世界 30 the rest of one s life 某人的余生 31 good luck 好运 32 make up 创造 编造 33 at the moment 目前 现在 34 so far 到目前为止 与现在完成连时 35 have a wonderful time have a good time enjoy oneself have fun 玩得高兴 36 what s more 而且 37 from to 从 到 9 38 the lack of 缺乏 39 around the world all over the world 全世界 40 交通方式的表达 1 take the 表示交通工具的名词 放句中 充当谓语 2 by 表示交通工具的名词 by sea by water by ship 水路 by air by plane 乘飞机 3 on in 限定词 交通工具 on the bike in the car 4 动词 to 地点 动词 walk ride drive fly 后接 to 接地点 话题写作话题写作 请你介绍一下游览北京的经历 内容如下 1 北京在中国的北方 每年有很多人到北京旅游 2 来过北京两次 跑遍了北京城 3 爬过长城 到过颐和园 the Summer Palace 和故宫 the Palace Museum 4 拍下了很多照片 与外国人用英语交谈过 Beijing is in the north of China There are many places of interest there A lot of people come to visit Beijing every year I have been to Beijing twice I have traveled around Beijing I have climbed the Great Wall I have visited the Summer Palace and the Palace Museum I have also had conversation with foreigners and I have taken lots of photos It was an interesting experience I had a good time there But I haven t seen the Beijing Opera It s a pity I hope I can visit it again one day Module 3 1 no problem 没问题 2 the lastest news 最新的消息 3 in order to 为了 4 search for 寻找 搜索 10 5 hunderds of 成百的 6 a small part of 一小部分 7 none 既可指人 又可指物 用于三者或三者以上 常用于回答以 how many how much none of 没有一个 no one 只指人 不与 of 连用 用于回答 who 开头的问句 8 take a photo of take photos of take pictures of take a pictures 9 so 与 such 的用法 1 当修饰可数名词单数时 用 such a an 形容词 名词 或 so 形容词 a an 名词 2 当这些可数名词或不可数名词前有 many much few little 表示少 修饰时 则用 so 如 so many people so much money 10 in space 在太空中 in the sky 在天空中 e back 回来 12 look for 寻找 13 as as 像 一样 14 decide to do sth 决定做某事 15 be named after 以 名字命名 16 take after 与 相像 11 17 be up to 正在做某事 忙于做某事 What are you up to What are you doing 18 be up to sb 由 决定 由 负责 19 yet 副词 还 尚 用于否定和疑问句句末 already 已经 常用于肯定句中或句末 20 That s why 这就是 的原因 后接结果 That s because 后接原因 21 on the news 在新闻上 22 on a newspaper 表示 某物 在报纸上 23 in a newspaper 在报纸里 的内容 24 discover 指发现原来已有但不为人知的事物 invent 发明 即创造出前所未有的东西 find out 查出真相 原理等 也可用于查看地时刻表等 find 找到 发现 指寻找的结果 look for 寻找 侧重指寻找的动作和过程 25 the noon 月亮 the 世界上独一无二的事物名词 26 in order to 为了 表示目的 27 message 口头传递的或书写的消息 可数名词 news 通过新闻媒体发布的消息 不可数 information 指在阅读 谈话中特别关注的消息 情报 资料等 不可数 12 28 hundred thousand million billion 只有和 of 一起时 才加 s 跟了数字 不加 s 30 none 代词 没有一个 没有一人 一点儿也没有 通常 用于三者或三者以上 既可指人也可指物 可 与 of 连用 可回答 how many no one 只能指人 不能与 of 连用 可回答 who 31 三到达 get to arrive in 大地方 at 小地方 reach 跟地点副词时不用介词 不用 reach 32 take a photo of sb 给某人照相 而且是给他本人照相 take a photo for 为某人照相 不一定有 他本人 33 enough 修饰名词放在前 修饰形容词和副词放在后 34 alone 作表语 独自一方 个体单独 lonely 作表语或定语 心里孤单 寂寞 municate with sb 和某人交流 话题写作话题写作 随着时代的进步 科技的发展 人们的生活发生了日新月异的变化 未来的生活将会是什么 样子的呢 谁都无法预料 请发挥想象 谈一谈未来的日子里 将有哪些不可思议的变化 如 很多事情由机器人或计算机完成 在家购物 足不出户旅行 请以 The life we can t imagine 为题写一篇短文 The life we can t imagine What do you think of the life in the future will be like In the future there will be more computers in our houses Computers will help us to know a lot about 13 the world We will be able to talk by e mail Scientists will make many robots Robots can help us do the cleaning cooking and washing We can do some shopping or see a doctor without going out of our houses The life in the future will be very good For this we will study hard and turn our ideas into reality I believe we will be able to do this Module 4 语法语法 since 和 for 的用法 for 后跟一段时间 since 后跟过去的时刻或过去时的句子 用 since 和 for 表示现在完成时 动词只能用延续性动词 不能用终止性动词 Come be there arrive in at reach get to come to be in be at go out be out leave be away from begin be on stop be over buy have borrow keep open be open close be closed join be a member of die be dead catch a cold have a cold get to know know become a tacher be a teacher fall asleep be asleep get married marry be married fall ill be ill go to bed be in bed return be back receive have go to sleep sleep 知识点知识点 1 sick 可作表语 也可作定语 修饰名词 ill 只作表语 2 get a stomachache 胃痛 toothache 牙疼 headache 头疼 用 get have a 3 catch a cold 感冒 终止性动词 have a cold 感冒 延续性动词 14 4 take sb s temperature 量某人的体温 5 do exercise 锻炼 6 be harmful to 对 有害 相当于 do harm to 反义短语 be good for 对 有好处 7 first second next finally 首先 其次 然后 最后 8 take the medicine 吃药 9 three times a day 一天三次 一次 once 两次 twice 10 once a week 一周一次 twice a year 一年两次 这些表示频率的 对其提问用 how often 11 by 使用某种方式 方法或交通工具 后接名词 代词 或动名词 With 使用某种工具或身体某个部位 后接名词或代词 In 使用语言 语调 笔墨或颜色 后接名词或代词 12 take a walk 散步 take a 名词 have a 名词 take have a look 看一看 take have a swim 游泳 take have a rest 休息一下 take have a cup of tea 喝杯茶 13 take part in 参加会议或群众性活动等 可以与 join in 互换 Join 加入某人团体或 成为其成员之一 15 14 in the last few years 在过去的一段时间里 相当于 in the past 一段时间 15 go for 名词 去进行某项活动 go for a run 去跑步 go for a picnic 去野餐 go for a ride 去骑马 去乘车 go for a trip 去旅行 16 表示建议的句型 1 Why don t you why not 2 What about how about 怎么样 3 Would you like 你想 吗 4 Let s 让我们 吧 5 We d better 我们最好 17 in hospital 住院 强调事情 说明生病了 18 in at the a hospital 在医院里 强调地点 19 take care of look after 照顾 照看 take care look out be careful 小心 20 go doing 表示去做某事 go swimming 去游泳 go boating 去划船 go fishing 去钓鱼 go skating 去滑冰 go shopping 去购物 21 set up 创建 设立 开办 22 all over 浑身到处 23 feel awful 感到不舒服 24 sleepy adj 欲睡的 想睡的 I often feel sleepy in class 16 asleep adj 睡着的 睡熟的 fall asleep 入睡 睡着 I felt sleepy and fell asleep soon 25 from time to time 偶尔 有时 26 on the way 在途中 在路上 27 all one s life 一辈子 28 too to 太 而不能 话题写作话题写作 How to keep healthy It is important to keep healthy But how to keep healthy Here s some advice First we should have a healthy diet We should eat more vegetables and fruit We should have breakfast everyday and eat less fast food Second we should do more exercise Such as swimming running and walking Third we should have good habits we should get up on time and go to bed on time At last we should have a enough sleep If we can do like this we will have a healthy body Module 5 语法语法 一般现在时 一般过去时 现在完成时的区别 一般现在时 标志词 always usually often sometimes never every day on Sundays in the morning afternoon evening 等 动词表现形式 be am is are 动词原形 动词 es s 一般过去时 标志词 yesterday the day before yesterday last ago just now in 2002 等 动词表现形式 be was were V ed 不规则动词过去式 现在完成时 just already ever never yet 等 since 过去的时间 for 一段时间 动词表现形式 have has 过去分词 知识点知识点1 in a happy way 以快乐的方式 2 the same as 和 一样 3 climb up 爬上 攀 登 17 4 can t help doing sht 忍不住做某事 can t wait to do sth 迫不及待做某事 5 It s time to do sth 到做某事的时间了 It s time for 名词 6 beat 宾语是比赛的对手 win 宾主是表示比赛 战争 资金 名次等 7 win the heart of sb 赢得某人的心 8 make a mess 弄得乱七八糟 9 ever since 从那时起 一直到现在 10 more than 超过 多于 11 as well as 也 和 一样 13 lead to 导致 造成 14 lead sb to do sth 引导某人做某 事 15 lead a life 过着 生活 16 be good at be well in 擅长 17 decide on 决定 选定 18 at first 起初 开始 19 mind doing sth 介意做某事 类似短语 finish doing sth practice doing sth be busy doing suggest doing sth enjoy doing sth miss doing sth look forward to doing 18 20 Would you mind doing sht 回答 不介意 not at all Certainly not Of course not 表示介意 I m sorry but I do 21 across 指从表面横穿 through 从内部通过 22 keep doing sth 坚持做某事 一直做某事 23 keep sb from doing sth 使某人不做某事 24 keep sb doing sth 让某人一直做某事 25 help oneself 自便 随便 26 both of 两者都 all 表示三个或三个以上 27 expect to do sht 期待做某事 28 最后 finally at last in the end 29 one s own 某人自己的 on one s own by oneself alone 独自地 30 as well 也 相当于 too 前无逗号 as well as 放句中 动词与前面的主语一致 31 be popular with sb 受某人欢迎 be popular in 在 有名望 be popular 因 受欢迎 32 handsome 英俊的 主指男子相貌等 beautiful 美丽的 指女子的美 也可指物 19 good looking 好看的 主要用于人 不用于物 pretty 漂亮的 常用于女性 小孩或事物 33 protect sb from sth 保护 免受 的伤害 stop from keep from 阻止 去 做 34 the number of 的数量 后接名词复数 动词用三单 常用 large 或 small 作表语 a number of 大量 许多相当于 many 后接名词复数 动词也用复数 35 with the help of with one s help 在某人的帮助 36 in the future 将来 未来 37 ask sb for sth 向某人要某物 38 next to 邻近 40 tell a story 讲故事 话题写作话题写作 假设你是玲玲 你的美国笔友 Jane 在写给你的信中 介绍了美国卡通人物的情况 请你根据以下提示给她回复一封信 提示 1 美国的一些卡通人物也为许多中国孩子所喜欢 如唐老鸭 Donald Duck 米老鼠 Mickey Mouse 猫和老鼠 2 你最喜欢机智勇敢的猴王 Monkey King 与哪吒 Nezha 要求 80 词左右 开头已给出 不计入总词数 Dear Jane Thank you for telling me so much about cartoon characters from America We like Some of the characters Such as Donald Duck Mickey Mouse Tom and Jerry They are famous in China China has also many cartoon heroes All of them I like Monkey King and Nezha best because they are brave and clever They can beat all the bad people I believe you will fall in love with them if you 20 see them one day Yours Lingling Module 6 语法语法 英语基本简单句 1 主 系 表语 S V P My father is a teacher 2 主语 谓语 不及物动词 S V We work hard at English 3 主语 谓语 及物动词 宾语 S V O He enjoys music very much 4 主语 谓语 及物动词 间接宾语 直接宾语 S V IO DO She cooked us a delicious dinner 5 主语 谓语 及物动词 宾语 宾语补足语 S V O C I often hear her sing in the next room 6 There be 主语 There is a bird in the tree 知识点知识点 1 a bit of 有点儿 一些 修饰不可数名词 bit of 有点儿 一些 后接形容词 同义 短语 a little 2 as as 和 一样 3 some others 一些 另一些 4 make sb do sht 使某人做某事 类似 have sb do sth let sb do sht 5 grow up 成长 长大 21 6 show have interest in 对 表现出 有兴趣 后接名词 代词或动名词 7 encourage sb to do sth 鼓励某人做某事 e out 出版 发表 9 success n 成就 成功 Failure is the mother success 失败乃成功之母 successful adj 成功的 successfully adv 成功地 succeed v 成功 He finished the work successfully He is a successful writer 10 as a result 结果 因此 相当于 so 常先交代原因 然后用 as a result 引出结果 11 be interested in 对 感兴趣 14 all the time 一直 总是 12 it is adj for sb to do sth It is adj of sb to do sth It 形式主语 13 run out of 用完 耗尽 主语通常是人 of 后跟时间 精力 钱或物的名词 相当于 use up 14 look forward to doing sht 盼望做某事 15 be used to doing sht 习惯于做某事 16 tidy up 收拾 整理 22 17 take up 占据 take off 起飞 脱下 take out 拿出 take away 拿走 take photos 拍照 take part in 参加 18 show sb sht show sth to sb 给某人看某物 19 remember doing sht 记得已做过某事 已做完 remember to do sht 记得要做某事 未做 Forget doing sht 忘记已做过某事 forget to do sht 忘记要做某事 20 look after take care of 照顾 照看 look at 看 look for 寻找 look up 查字典 Look over 检查 look forward to doing sht 期望做某事 21 pleasure It s a pleasure My pleasure 不用谢 不客气 with pleasure 很乐意 22 see sb do sht 看见某人做过某事 已过 或经常做 see sb doing sth 看见某人正在做某事 类似的词有 watch listen to hear notice 23 enjoy doing sth 喜欢做某事 24 have to do sht 必须做某事 25 in one s free time 在某人的业余时间 26 write to 写信给 23 28 get ready for 为 做准备 29 find out 查明 找出 发现 30 not only but also 不仅 而且 话题写作 话题写作 My hobby Different people different hobbies What hobbies do you have I enjoy reading books very much because there are lots of interesting things in them Two years ago I didn t like reading very much I had plenty of time but I spent lots of time on playing computers games When I was very young I didn t think reading book was interesting because I found nothing more interesting than the computer games But I ve changed now I like reading books because there ar e a lot of useful things in books I can learn a lot of knowledge from books Books can also teach me how to be a good person my hobby 英语作文范文 2 Everyone has his own hobby I like collecting many things such as books toy cars and so on But I like collecting stamps best I have been collecting stamps for five years When I was very young my uncle sent me a stamp from Australia I loved it at once Since then I tried to collect stamps and fell in love with it I have more than one hundred stamps Some were from foreign countries some were Chinese I like stamps because they are very beautiful and very interesting Every stamp is a wonderful picture and from it you can learn a lot Module 7 并列复合句 并列关系 选择关系 转折关系 24 知识点知识点 1 make a list 列清单 2 be crazy about 狂热于 3 at the end of 在 的结尾 在 的末端 in the end at last finally 最后 4 a pair of 一双 一副 a pair of pants trousers glasses shorts shoes socks chopsticks gloves 5 had better do sth 最好做某事 had better not do sht 最好不做某事 6 put on weight 长胖 增肥 lose weight 减肥 take one s weight 量体重 lift weights 举重 7 by the way 顺便说一下 附带说一下 8 on one s way to 在某人去 的路上 in a way 某种程度上 in this way 用这种方式 give way to 让路 9 in the way 挡在路上 挡道 10 offer sb sth offer sth to sb 向某人提供某物 11 offer to do sht 主动提出做某事 12 at the same time 同时 13 at the beginning of 在 的起初 14 depend on 决定于 视 而定 25 15 provide sth for sb provide sb with sth 提供某物给某人 16 make progress 取得进步 progress 前用 great good much some 修饰 17 form close friendships with sb 和某人建立亲密友谊 18 keep in touch with sb stay in touch with sb 与某人保持联系 19 prefer 更喜爱 钟爱 相当于 like better 过去式和过去分词为 preferred 现在分词 preferring Prefer sth to sth 喜欢 胜过 Prefer doing sth to doing sth 喜欢做某事胜过 21 fill out the form 填表格 相当于 fill in the form fill with 用 把 装满 强调动作 be filled with be full of 充满 装满 强调状态 23 sometimes 有时 some times 几次 几倍 sometime 某时 some time 一段时间 24 prefare for 对 做准备 25 too much 太多 27 how long 多久 多长时间 多长 对一段时间或物体长度提问 回答 how long 用 for 一段 时 26 间或 since 过去时间 how many times 多少次 常对次数进行提问 How soon 多久 常 对 in 一段时间提问 How often 多久一次 对频率进行提问 How many much 多少 对可数 不可数提问 How far 多远 对距离提问 28 go come leave start arrive return fly 的现在进行时表将来时 29 else 作后置定语 疑问词 不定代词 else other 作前置定语 other 名词复数 30 experience 经历 可数 经验 不可数 31 表示时间 金钱 价格 长度 学科的名词以 s 结尾等词作主语时 被视为一个整体 谓语 动词用单数形式 33 be certain to do sth 确定做某事 34 at least 至少 at most 至多 不超过 35 leave for 动身前往 for