新概念英语第二册逐句精讲语言点第53课(4)
Lesson53 Hot snake
At last firemen have put out a big forest fire in California. Since then, they have been trying to find out how the fire began. Forest fire are often caused by broken glass or by cigarette ends which people carelessly throw away.Yesterday
the firemen examined the ground carefully, but were not able
to find any broken glass. They were also quite sure that a cigarette end did not start the fire. This morning, however,
a fireman accidentally discovered the cause. He noticed the remains of a snake which was wound round the electric wires
of a 16,000-volt power line. In this way, he was able to
solve the mystery. The explanation was simple but very unusual. A bird had snatched up the snake from the ground and then dropped it on to the wires. The snake then wound itself round the wires. When it did so, it sent sparks down to the ground and these immediately started a fire.
10、A bird had snatched up the snake from the ground and
then dropped it on to the wires.
一只鸟把蛇从地上抓起来，然后把它扔到了电线上。…
语言点辨析drop, fell：
1) drop v.丢在，降落(主动）；drop n.水珠；[复]眼药水，滴剂
2) fell v.掉下，坠落(被动)；falln.秋天；瀑布(=waterfall)
11、The snake then wound itself round the wires.
于是蛇就缠住了几根电线。
语言点 then意为“然后”
12、When it did so, it sent sparks down lo the ground and these immediately started a fire.
当它这样做时，把大花送到了地面，这法火花立刻引起了一场大火
语言点 so常常用在动词后表示前句说过的一件事情或者某个动作，避免重复。
Text SOS 国际通用的呼救信号 1）save our souls 2）save our ship 3）莫尔斯电码符号（三点，三横，三点） When a light passenger plane flew off course some time ago, it crashed in the mountains and its pilot was killed. a light passenger plane 一架轻型客机 a cargo plane/ a cargo aircraft 货机 fighter plane 战斗机 civil aviation 民用航空 fly off course 偏离航线 fly from country 逃亡国外 course n 所经之路，方向，路线，航线，过程，进程，课程 a south-ward course 向南的路线 eg Our course is directly north. 我们的路线是朝正北的。 eg He gave me some advice on my future course.他就我未来的发展方向给了我一些忠告。 eg You can see the course of the river on the map. 你在地图上能看到河流的走向。 unhurt adj 平安无事，没有受伤 （反义词 hurt) hurt 1v 使（身体）受伤，使疼痛 eg I am not hurt. I am all right. 我没有受伤，我很好。 eg Be careful not to hurt yourself.= Be careful not to get hurt. 小心别伤到自己。 2v 使（人，身体）疼痛 eg These shoes are too tight and hurt my feet. 这双鞋太紧了，使我的脚很痛。 eg My injured left leg still hurts. 我受伤的左腿还很痛。 eg My shoes hurt. 我的鞋很挤脚。 It was midwinter. 正是隆冬时节。 midsummer 仲夏 midnight 午夜 midfield (足球场等的）中场 middle man 经销商，中间人 middle ring 中指 the Middle East 中东 middle class 中产阶级 middle-aged 中年的 the middle of nowhere （口）偏远的某地 lay 为系动词 thick 是表语，表示主语的状态或性质 all the clothes she could find, all the clothes 是定语从句修饰she could find, 她能找到的所有衣物。 covering 是现在分词，在本文中是现在分词短语作状语， inside 是介词 grow v 变得(grow-grew-grown) grow dark 变得黑了 （grow 作系动词） eg He grew angry when I told him about it. The only passengers, a young woman and her two baby daughters were unhurt. It was the middle of winter. Snow lay thick on the ground. The woman knew that the nearest village was miles away. When it grew dark, she turned a suitcase into a bed and put the children inside it, covering them with all the clothes she could find. 我告诉他这件事情的时候他变得非常生气。When a light passenger plane flew off course some time ago ， it crashed in the mountains and its pilot was killed.The only passengers ， a young woman and her two baby daughters ， were unhurt. It was the middle of winter.Snow lay thick on the ground. The woman knew that the nearest village was miles away. When it grew dark ， she turned a suitcase into a bed and put the children inside it ， covering them with all the clothes she could find.During the night ， it got terribly cold. The woman kept as near as she could to the children and even tried to get into the case herself ， but it was too small. Early next morning ， she heard planes passing overhead and wondered how she could send a signal. Then she had an idea. She stamped out the letters 'SOS' in the snow.Fortunately ， a pilot saw the signal and sent a message by radio to the nearest town. It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.
Lesson 54 What nationality are they? Where do they come from? New words and expressions: Australia n．澳大利亚Australian n．澳大利亚人Austria n．奥地利 Austrian n．澳大利人 Canada n．加拿大 Canadian n．加拿大人 China n．中国 Finland n．芬兰 Finnish n．芬兰人 India n．印度 Indian n．印度人 Japan n．日本 Nigeria n．尼日利亚 Nigerian n．尼日利亚人Turkey n．土耳其
Turkish n．土耳其人Korea n．韩国 Polish n．波兰人Poland n．波兰 Thai n．泰国人Thailand n．泰国 China--- the People's Republic of China Exercise A： Example: The sun rises early. Does the sun rise early? The sun doesn't rise early. 1.The sun sets late. Does the sun set late? The sun doesn't set late. 2. He likes ice cream. Does he like ice cream? He doesn't like ice cream. 3. Mrs. Jones wants a biscuit. Does Mrs. Jones want a biscuit? She doesn't want a biscuit.
新概念英语第二册Lesson70 Red for danger Lesson 70 Red for danger 危险的红色 First listen and then answer the question. 听录音，然后回答以下问题。 How was the drunk removed from the ring? During a bullfight, a drunk suddenly wandered into the middle of the ring. The crowd began to shout, but the drunk was unaware2 of the danger. The bull1 was busy with the matador3 at the time, but it suddenly caught sight of the drunk who was shouting rude remarks and waving a red cap. Apparently4 sensitive to criticism, the bull forgot all about the matador and charged at the drunk. The crowd suddenly grew quiet. The drunk, however, seemed quite sure of himself. When the bull got close to him, he clumsily stepped aside to let it pass. The crowd broke into cheers and the drunk bowed. By this time, however, three men had come into the ring and they quickly dragged the drunk to safety. Even the bull seemed to feel sorry for him, for it looked on sympathetically until the drunk was out of the way before once more turning its attention to the matador. New words and expressions 生词和短语 bullfight n. 斗牛 drunk n. 醉汉 wander v. 溜达，乱走 ring n. 圆形竞技场地
新概念英语第一册课文翻译及学习笔记Lesson51~56 新概念英语第一册课文翻译及学习笔记Lesson51~52 【课文】 HANS: Where do you come from? DIMITRI: I come from Greece. HANS: What's the climate like in your country? DIMITRI: It's very pleasant. HANS: What's the weather like in spring? DIMITRI: It's often windy in March. It's always warm in April and May, but it rains sometimes. HANS: What's it like in summer? DIMITRI: It's always hot in June, July and August. The sun shines every day.
HANS: Is it cold or warm in autumn? DIMITRI: It's always warm in September and October. It's often cold in November and it rains sometimes. HANS: Is it very cold in winter? DIMITRI: It's often cold in December, January and February. It snows sometimes. 【课文翻译】 汉斯：你是哪国人? 迪米特里：我是希腊人。 汉斯：你们的国家的气候是怎么样? 迪米特里：气候非常宜人。 汉斯：春季的天气怎么样? 迪米特里：3月里常常刮风。4月和5月的天气总暖洋洋的，但有时下雨。
Lesson 70 Red for danger 危险的红色 【Text 】During a bullfight, a drunk suddenly wandered into the middle of the ring. The crowd began to shout, but the drunk was unaware of the danger. The bull was busy with the matador at the time, but it suddenly caught sight of the drunk who was shouting rude remarks and waving a red cap. Apparently sensitive to criticism, the bull forgot all about the matador and charged at the drunk. The crowd suddenly grew quiet. The drunk, however, seemed quite sure of himself.When the bull got close to him, he clumsily stepped aside to let it pass. The crowd broke into cheers and the drunk bowed. By this time, however, three men had come into the ring and they quickly dragged the drunk to safety. Even the bull seemed to feel sorry for him, for it looked on sympathetically until the drunk was out of the way before once more turning its attention to the matador. 【课文翻译】 在一次斗牛时，一个醉汉突然溜达到斗牛场中间，人们开始大叫起来，但醉汉却没有意识到危险。当时那公牛正忙于对付斗牛士，但突然它看见了醉汉，只见他正大声说着粗鲁的话，手里挥动着一顶红帽子。对挑衅显 然非常敏感的公牛完全撇开斗牛士，直奔醉汉而来。观众突然静了下来，可这醉汉像是很有把握似的。当公牛逼近他时，他踉跄地住旁边一闪，牛扑空了。观众欢呼起来，醉汉向人们鞠躬致谢。然而，此时已有 3个人 进入斗牛场，迅速把醉汉拉到安全的地方。好像连牛也在为他感到遗憾，因为它一直同情地看着醉汉，直到他的背影消逝，才重新将注意力转向斗牛士。 New words and expressions 生词和短语 【生词讲解】 1.bullfight n. 斗牛（活动） bull n. 公牛 cow n. 母牛，奶牛 ox 大公牛(oxen, pl. ) calf 小牛 bull market 牛市（股市行情很好） bear market 熊市（股市行情不好） bully n. 恃强凌弱的人bullfight n. 斗牛drunk n. 醉汉wander v. 溜达，乱走ring n. 圆形竞技场地unaware adj. 不知道的，未觉察的bull n. 公牛matador n. 斗牛士 remark n. 评论；言语 apparently adv. 明显地 sensitive adj. 敏感的 criticism n. 批评 criticism n. 批评 charge v. 冲上去 clumsily adv. 笨拙地 bow v. 鞠躬 safety n. 安全地带 sympathetically adv. 同情地
新概念英语第二册逐句精讲语言点第75课(2) Lesson 75 SOS 呼救信号 When a light passenger plane flew off course some time ago, it crashed in the mountains and its pilot was killed. The only passengers, a young woman and her two baby daughters, were unhurt. It was the middle of winter. Snow lay thick on the ground. The woman knew that the nearest village was miles away. When it grew dark, she turned a suitcase into a bed and put the children inside it, covering them with all the clothes she could find. During the night, it got terribly cold. The woman kept as near as she could to the children and even tried to get into the case herself, but it was too small. Early next morning, she heard planes passing overhead and wondered how she could send a signal. Then she had an idea. She stamped out the letters "SOS" in the snow. Fortunately, a pilot saw the signal and sent a message by radio to the nearest town. It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash. 句子讲解： 5、The woman knew that the nearest village was miles away. 这位妇女知道，即使最近的村庄也有数英里远。 6、When it grew dark, she turned a suitcase into a bed and put the children inside it, covering them with all the clothes she could find. 夜幕降临时，她把提箱当作小床，把她的孩子们放了进去，又将所有 能够找到的衣服都盖在了孩子们身上。
Lesson 53 and Lesson 54 一、单词拼写。（20分） 1.m______ （温和的） 2. a________ （总是） 3. n________ （北方） 4.e________ （东方） 5. w_________ （潮湿的） 6.w________（西方） 7.s_________ （南方） 8. s__________（季节） 9.b________（最） 10.C___________（中国） 二、用所给动词的适当形式填空（20分） 1. What colour are you going (paint) it？ 2. the plane often (fly) under the bridge? 3.The sun (set) late in spring and summer. 4. Jim not (like) autumn or winter. 5. Look, the cats (run) along the wall. 三、根据句意填空（20分） 1. We come from Germany，but Stella comes Spain. 2. You’re Italian. You come from . 3. she come from Norway? 4. He is . He comes from Greece. 5. What are you? I’m Russian. 四、选择填空（30分） ( ) 1. Would you like tea? A. any B. every C. each D.some ( ) 2. It’s mild, but it pleasant. A.always is not B.is always not C. is not always D. always is not ( ) 3. It’s often wet ________ the west. A. on B. in C. / D. of ( ) 4. --Are you going to Jim’s birthday party this Sunday? --Yes,_______________________. A.I’m going to see my grandma this Sunday. B.I’m going there with Tom. C.I have to study for a test. D.I have no time this Sunday. ( ) 5. —Whose notebook is this? —It Jim’s. It has his name on it. A. can’t be B. must be C. can be ( ) 6. is the climate like in your country? A. How B. What C. Which D. How often ( ) 7. Can the cats climb the big tree? A.Yes，it can B. No，it can’t C. No，they can’t D. Yes，please ( )8. Jack new words on the blackboard. A.write B. is write C. is writeing D. is writing
新概念英语第一册阶段测试题（54—60） 一．英译汉(20`) 1. in the office ___________ 2.the large size________ 3. 小号___________ 4. envelope___________ 5. change ___________ 6. 去学校___________ 7. on foot ___________ 8.10:00 ___________ 9.stay at home ___________ 10. drink tea ___________ 11. Living room _________ 12. an interesting book _________ 13.in the garden _________ 14. at the moment ___________ 15. 在早上___________ 16. in the afternoon _______ 17. at night ______________ 18. at noon ___________ 19. in spring ___________ 20. in summer _____________ 二．选择正确的词填空。(10分) A．用any, some 填空. 1. T here is _______ water in the glass, but there isn’t _______ milk in the bottle. 2. Is there ________ apples on the table? ---- Yes，there are ________ here. B.用am not aren’t isn’t can’t don’t doesn’t 填空. 1. My father likes coffee, but I ________. 2. Lily likes tea, but Jim _________. 3. He is very tall, but she ________. 4. They are very happy, but we ________. 5. He likes playing football, but he _______ like swimming. 6. I like running, but I _______ like jumping. 7. I _______ like swimming, Lucy _______ likes swimming, too. 8. She can type very well, but I _________. 三．选择填空。(20分) ( ) 1. ________ is this shirt? A. Who B. Where C. Whose D. When
新概念英语第一册Lesson 53课后练习册答案 Lesson 53 阅读理解 （1）答案与解析 1. 从I have to finish my homework before I go to bed.来看， 作者是在晚上做作业的。要填evening。 2. My mother cleans the dining-room and then she washes the school clothes for me.告诉我们，母亲要做家务事。故应填housework。 3. 由My father says the shops are open now.我们能够得知，父亲认为商店没相关门。要填closed。 4. 从When I got to the Uncle Wang’s shop, he says hello to me.来看，他对“我”很友好。该空应填 friendly。 5. 从They are not expensive. I buy one exercise-book and go home quickly.能够看出，那里的东西不贵。 故应填cheap。 （2）答案与解析 1. B。从My friend Diana is in Class Two, Grade One.能够得知，她是一个学生。 2. A。The first class begins and I leaves their school.已经 告诉我们，她是早上去学校的。
3. B。我们能够从There’re twenty boys and twenty-two girls in her class.了解到，他们有42 个学生。 4. A。从Diana and another girl are on duty.能够了解到，有两个学生在打扫教室。 5. A。由Miss Gao is coming. She teaches them English.能够证实，她是他们的英语老师。 英汉翻译 1. My husband doesn’t like spring and summer. 2. Where do you come from? Are you Australian? 3. What’s the weather like in your hometown? 4. Which season do you like best? 5. The climate is warm, but it isn’t always pleasant. 6. The days are long and the nights are short. 7. We come from Poland. 8. Do you come from France?
新概念英语单词第一册第55 课：索耶一家人 live [lv] v．住，生活 【派生】 living生 【充】 life生活alive活着的 【搭配】 live on...靠??生活 【例句】 A：Who lives with you? A：你和住在一起？ B：Kate and Nancy do. B：我跟特和南希?起住。 stay [ste]停，逗留 【充】 stop over中途停留 【搭配】 stay at home 待在家stay still 静止不stay out of不参与stay up熬夜 【例句】 A： How long do you plan to stay here? A：你打算在儿停留多久？ B：I will stay here for about ten days. B：我将在儿待大概10 天。 home [hm] 家 【派生】 homeland 祖国
【单词搭配】 at home 在家 go home 回家 【单词例句】 A：I must go back home where many things are waiting for me to settle B： We're very sorry to see you go. A：我必须回国了，很多事正等着我去处理。 B：您要走了，我们感到非常遗憾。 housework['hauswa ：k] 家务 【单词构造】 house（房子） +work（工作） = housework （家务）【单词搭配】 do the housework做家务 【单词例句】 A： My mother always says I spend too much time on watching TV A：我妈妈总是说我把太多的时间花费在看电视上。 B： Then you should finish your homework, and then help your parents with the housework some day. B：那你以后应该先完成家庭怍业，然后帮父母做些家务。 【单词搭配】 get together相聚all together一起 【单词例句】 A： Your roommate is so nice A：你的室友真是太好了。 B： Yes, we get along together very we
新概念英语第二册课后练习题答案详解(第75课) 新概念英语第二册课后习题Lesson 75 1. c 根据课文第1-2行能够推断，只有c. it wasn’t flying in the right direction 才是飞机坠毁的原因，所以只有c. 是准确答案。其他3个选择都不能说明飞机坠毁的原因。 2. a 根据课文第11行a pilot saw the signal and sent a message 能够推测，只有a 是课文所暗示的内容，其他3个选择都与课文的内 容不符。 3. b 只有选b. young 才能使该句同前一句意思相同.若选a. a youth 同前一句意思不符;c. a young 不合乎语法; d. youth 既不符 合语法也不合乎题目意思. 4. d 此句是一般过去时疑问句。因为有助动词did 提问，所以句子 的谓语动词要用原形。a. lay 是动词原形，词意思为“使……躺下， 放置”，它也是动词lie 的过去式;b. laid 是 lay 的过去式和过去 分词形式;c. lain 是动词lie 的过去分词;d. lie 是动词原形，意思为“平放着，处于某种状态”;只有lie 最符合语法和题目意思，所以选d. 5. b 只有选b. big enough 才能使本句与前一句It was too small 意思吻合。而 a. enough big 词序不对，不合乎习惯用法，c.
fairly big(相当大)，d. rather big(相当大)，他们都很少用于否定 句中。 6. a 该句的谓语动词hear后面应该跟名词+不带to 的动词不定式， 或跟名词+动词+ -ing ，只有a. pass 是不带to的不定式最符合语法，其它3个选择都不符合语法，所以选a. 7. b 只有b. soon afterwards (不久，很快)与前一句中的not long before 的含义相同，其他3个选择a. after (在……之后);c. behind (在……后面);d. much later (更晚)都不符合题目意思，所 以选b. 8. b 该句需要选出一个与前一句的light(轻型的)意思相反的词. a. dark( 黑暗的), b. heavy(重的), c. black(黑的), d. deep(深的)4 个词中只有heavy是light的反义词,所以选b. 9. d 该句应该选前一句的terribly(可怕地，极端地)含义相近的形容词。才能使两个句子意义相同。 a. frightening(使惊恐，恐吓)是动 词frighten的现在分词形式，很少作形容词用，因为它的形容词形式 是frightful; b. horrifying(使毛骨竦然，使震惊)也很少做形容词用，因为它有形容词horrible; c. shocking(令人震惊的，骇人的， 极坏的)语气比terrible 要强烈;d. frightful(惊人的，可怕的)是动词frighten的形容词形式，只有d与terribly 含义最接近，所以选d. 10. d 本句需要选一个与前一句中的signal(信号)含义相同的词。
Lesson 70 Red for danger危险的红色 How was the drunk removed from the ring? During a bullfight, a drunk suddenly wandered into the middle of the ring. The crowd began to shout, but the drunk was unaware of the danger. The bull was busy with the matador at the time, but it suddenly caught sight of the drunk who was shouting rude remarks and waving a red cap. Apparently sensitive to criticism, the bull forgot all about the matador and charged at the drunk. The crowd suddenly grew quiet. The drunk, however, seemed quite sure of himself. When the bull got close to him, he clumsily stepped aside to let it pass. The crowd broke into cheers and the drunk bowed. By this time, however, three men had come into the ring and they quickly dragged the drunk to safety. Even the bull seemed to feel sorry for him, for it looked on sympathetically until the drunk was out of the way before once more turning its attention to the matador. 参考译文 在一次斗牛时，一个醉汉突然溜达到斗牛场中间，人们开始大叫起来，但醉汉却没有意识到危险。当时那公牛正忙于对付斗牛士，但突然它看见了醉汉，只见他正大声说着粗鲁的话，手里挥动着一顶红帽子。对挑衅显然非常敏感的公牛完全撇开斗牛士，直奔醉汉而来。观众突然静了下来，可这醉汉像是很有把握似的。当公牛逼近他时，他踉跄地住旁边一闪，牛扑空了。观众欢呼起来，醉汉向人们鞠躬致谢。然而，此时已有3个人进入斗牛场，迅速把醉汉拉到安全的地方。好像连牛也在为他感到遗憾，因为它一直同情地看着醉汉，直到他的背影消逝，才重新将注意力转向斗牛士。 like a red rag to a bull令人暴怒的事物 bully n. 恃强凌弱的人 coward n. 懦马弓者 eg. Cowards die many times before their death; the valiant never taste of death but once. 懦夫在死之前，已死去多次；而勇士一生只死一次。(—语出莎士比亚的悲剧《裘力斯，恺撒》) bull 公牛 cow 母牛 steer 菜牛 OX 大公牛 Oxen (pl. ) calf小牛
新概念第55课教案设计 课型：New lesson （2）教学内容与目的要求： 1、Learn Lesson 55 2、Learn Simple Present. (3)重点句型及重点单词、词语： （4）教学准备： ①Recorder ②tape ③phonogram cards ④word cards ⑤stars ⑥poster ⑦phonetic symbol cards ⑧teaching plan ⑨教学流程表⑩Pictures （6）教学程序及教学游戏安排： StepⅠ:Warming up exercise 1．Genral greeting 2．1.go to work, 上班。 3．由动词 go引导的短语课文中还有：go to school(上学)， go to bed(上床睡觉)。请注意work, school以及 bed之前不带任何冠词。 4． 2.stay at home, 呆在家里。 5．与 stay home在意思上相差无几。前者中的 home是名词，后者中的home是副词。 6． 3.do the housework, 料理家务。 7．housework是不可数名词。请比较：do the homework(做作业)。 8． 4.at night, 在夜里。 9．如果说某日夜里，则用介词 on: on the night of June 2 在6月2日的夜里 10．语法 Grammar in use 11．一般现在时(2)(请参见 Lessons 47～48语法部分。) 12．一般现在时用于表示一个习惯动作、有规律的行为以及永恒的现象。一般与时间频度副词和时间短语连用。这些时间短语有： 13．every day/week/month/year 每日/周/月/年 14．in the morning/afternoon/evening 在上午/下午/晚上 15．at noon/night 在正午/夜里 16．第3人称单数的谓语动词需加以变化，这可分为几种情况： 17．(1)一般情况在动词后面直接加 -s，如：want----wants come----comes arrive----arrives 18．(2)以-s, -x, -ch, -sh, -o 结尾的动词加 -es，如：fix----fixes wash----washes go----goes watch----watches do----does 19．(3)以辅音加 -y结尾的动词，把 -y改成 -i，再加 -es;而元音加 -y结尾的动词，只加 -s即可： 20．hurry----hurries carry----carries play----plays stay----stays 21．词汇学习 Word study 22． 1.arrive v. 23．(1)到达;到来： 24．We arrived home early. 我们很早就到家了。
新概念英语第二册课后题答案详解：Lesson70 新概念英语第二册课后习题Lesson 70 1. d 根据课文第5-6行Apparently sensitive to criticism, the bull forgot all about the matador and charged at the drunk 能够判断，只有d. and attracted the bull’s attention 与课文的内容相符合，其他3个选择都与课文的事实不符。 2. b 只有选b. before he was removed 才与课文内容相符，其他3个选择都不是课文所暗示的情况，不符合课文所描述的内容。 3. c 前一句中的谓语动词charged at 意思为“朝着……冲上去”，本句只有选c. at 才能同前一句的意思温和，因为run at 有“朝着某个目标冲去”的意思。 a. to (朝某个方向跑去)目标不够具体; b. against(碰上，偶然遇见)， d. for (为某种目的而跑)这两个选择都与前一句的含义不吻合，所以选c. 4. c 本句的谓语动词was sure 是过去时，后面从句的动词也应该是过去时才合乎语法。 a. he will, b. that he will, d. he may 这3个选择都不是过去时，所以都不是准确答案。 只有c. he would 是过去将来时，最合乎语法，所以选c. 5. d
本句中的 let 后面只能跟宾语加不带to 的动词不定式(let sb. do sth.)才合乎语法. a. passing, b. to pass, c. in passing 都不能用在let 后面,只有d. pass 是不带to 的动词不定式,所以应该选d. 6. b 该句的谓语动词是(had come)过去完成时,需要选一个相对应的时间状语. a. Up till that time 和 d. Until then 都有"到那时为止"的意思,都能够用于过去完成时,但它们都不能同时表示瞬间的动作的动词(如go, come 等)的完成时连用,故不能选a. d. ; c. So far(到当前为止)只能用于现在完成时. 只有b. By then(那时,此时)能够用于过去完成时,所以b是答案. 7. c 本句的谓语动词looked on 是一般过去时，从句也应该是相对应的过去时态。 a. turn, b. to turn 都不合乎语法;d. it was turning 是过去实行时，一般不适合于以before 或者after 引导的状语从句中;只有c. it turned 是一般过去时，最合乎语法，所以应该选c. 8. a 前一句的unaware of 意思是没有意识到,本句需要选出与它意思相反的词组,以使两个句子意思相同. a. conscious of (意识到,知道的), b. knowledgeable about(对……有见识的，有知识的)，c. sensitive to(对……敏感的)， d. sensible about(对……觉察的，敏感的)中，只有a. 是unaware of 的反义词，所以选a. 9. c