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TextOnce a year,a race is held for old cars. （held 是hold 的过去分词）be held, 被召开，被举行once a year,每年一次，一年一次once a week ,一星期一次once a month ，一个月一次once(一次)---twice(两次)---three times(三次）---four times(四次）once or twice 一两次once 曾经eg We once lived in San Francisco. 我们曾经住在旧金山。
A lot of cars entered for this race last year and there was a great deal of excitement just before it began.enter for 参加（比赛，考试）join in 参加take part in 参加handsome adj （指男子）好看的，漂亮的，英俊的，相貌堂堂的egHe is a very handsome young man. 他是一个非常清秀的年轻人。
pretty/beautiful adj （指妇女或儿童）很漂亮的eg good-looking adj 好看的（复合词），即可以修饰女子，也可以修饰男子eg one of +(pl.)n. …之一The most unusual car was a Benz which had only three wheels.the most unusual 最不寻常的Built in 1885,it was the oldest car taking part.…taking part现在分词短语作定语修饰car take part 参加take part in+(宾语）参加…比赛，同意短语有，join in/ enter for eg The professor took no small part in thedispute. 在那次争论中，这位教授参与不少。
新概念英语第二册课后练习题答案详解( 第56 课) 新概念英第二册后Lesson 581. b根据文第 8-9 行⋯ but so far he has refused. He haspointed out that the tree is a useful source of income能判断只有 c. it earns money与文的内容相符，是牧拒把砍掉的原因，其他 3 个都与文的情况不符，所以 b.2. d根据文最后两句⋯ the tourists have been picking leavesand⋯ So far, not one of them has been struck down by suddendeath,能看出只有 d. Tourists who have picked leaveshaven’t died (摘叶的游客没有死) 是真的，与文的内容相符，其他 3 个都与文的事不符。
3. a句缺少主和，只有一个that 引的从句。
只有 a. They say ( 他，人 ) ，最适合个句子，也合乎法和用法。
其他 3 个 b. it said (它)意思不，是it is said才准确;c. Said缺少主;d. It is saving不合乎用法，是It is said才。
所以 a.4. a句中的 if从句是去，那么主句就是去将来，即用 would 加原形，表示与在事相反，所以只有 a. would才能使主句 He would die与If从句相配，构成虚气。
其他 3 个都不合乎法。
5. c句是 在完成 否定式, 句尾需要添一个合适的副 .a. still,b. even, d. more 都不能用在句尾 , 只有c. yet 常用于完成 否定句的句尾 , 表示 " 没 ", 所以只能 c.6. b句中的⋯ all that has been said名 性短 ，前面只能有介 引 。
TextOnce a year,a race is held for old cars. （held 是hold 的过去分词）be held, 被召开，被举行once a year,每年一次，一年一次once a week ,一星期一次once a month，一个月一次once(一次---twice(两次---three times(三次）---four times(四次）once or twice 一两次once 曾经eg We once lived in San Francisco. 我们曾经住在旧金山。
A lot of cars entered for this race last year and there was a great deal of excitement just before it began.enter for 参加（比赛，考试）join in参加take part in参加handsome adj （指男子）好看的，漂亮的，英俊的，相貌堂堂的egHe is a very handsome young man. 他是一个非常清秀的年轻人。
pretty/beautifuladj （指妇女或儿童）很漂亮的eg good-looking adj 好看的（复合词），即可以修饰女子，也可以修饰男子eg one of +(pl.n. …之一The most unusual car was a Benz which had only three wheels.the most unusual 最不寻常的Built in 1885,it was the oldest car taking part.…taking part现在分词短语作定语修饰car take part 参加take part in+(宾语）参加…比赛，同意短语有，join in/ enter foreg The professor took no small part in thedispute. 在那次争论中，这位教授参与不少。
Lesson 56 Faster Than Sound★ Warm up1. 非谓语动词作状语2. 比较级的用法3. “许多”的英语表达★ Listening1. How often is a race held for old cars?2. Which was the most unusual car entering for the race?The most unusual car was a Benz which had only three wheels. Built in 1885, It was the oldest car taking part.3. How fast did the winning car go? Forty miles an hour.4. What did the writer say about the old car race in comparison with modern car races?He said it was very different from modern car races but no less exciting.★ Vocabulary● sound [saʊnd] n. (可数) 声音【记忆】大英帝国无bound（边界）英联国家abound（大量存在）流通货币是pound（英镑）【近义】voice n. 声音、嗓音; vocality n. 声乐、声音【拓展】soundly adv. 香甜地、完好地、健全地【辨析】noise, sound, voicenoise 通常指不悦耳的、令人烦恼的嘈杂声，隐含贬义。
sound 普通用词，含义笼统，指人们能听到的各种声音，无褒贬色彩。
voice 指人说话或唱歌时发出的声音。
❶ n. 声音、声响A: The sound is so familiar. 这声音太熟悉了。
B: Yes, I'm sure you know the man. 是的，我肯定你认识这个人。
