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新概念第二册自学导读 Lessons25
and前面一般不加逗号,但其他连词前则一般要加逗号:
Jim speaks Spanish, but his wife speaks French.吉姆讲西班牙语,而他妻子却讲法语。
I've got a cold, so I'm going to bed.
我得了感冒,所以我要去睡觉。
当并列连词连接的成分相同时,通常不再重复:
He either speaks French or understands it.
他或是会讲法语,或是懂法语。(主语相同,省略)
Either you or I can eat the apple.
这个苹果或者是你吃,或者是我吃。(谓语相同,省略)
Both Mary and Jane understands English.
玛丽和简都懂英语。
当 both…and, either…or和neither…nor连接主语时,谓语动词与后一个主语保持一致:
Neither Liz nor I teach mathematics.
莉兹和我都不教数学。(第2个主语为I,所以teach后不加-es)
词汇学习 Word study
1.wonder
(1)vt.,vi.感到惊讶,感到诧异:
They wondered that there was a modern building in that district.
那个地方居然有一座现代化建筑,他们感到很惊讶。
He wondered at the beauty of the old town.
这座古老小镇的美丽令他惊讶不已。
(2)vt.,vi.(对……)感到疑惑/怀疑,想知道:I wonder/I'm wondering if we've made a mistake.我怀疑我们是否犯了个错误。
I wonder what will happen next.
我很想知道下一步会发生什么事。
Will he come to dinner? I wonder.
他会来吃饭吗?我怀疑。
(3)n.奇迹,奇观,奇才;惊奇,惊讶:
Jane is a wonder. She never fails in her examinations.
简是个奇才。她从来没有考试不及格过。
She looked at the boss in wonder.
她惊讶地看着老板。
the seven wonders of the world in ancient times世界古代7大奇观
2.each other
从原则上讲,这个短语指两个人“互相”:
You and I must try to help each other.
你我两个人必须尽力互相帮助。
有时,这个短语也可以用来指许多人之间“互相”:
We must all help each other.
我们大家都必须互相帮助。
练习答案 Key to written exercises
1.关键句型练习答案
A and(1.1); so(1.2); not only…but…as well(11.2-3);and(1.5);but(1.5);neither…nor(1.6);but(1.7);and (1.8);and(1.8);and(1.9);but(1.10)
C 1 I knocked at the door but he did not open it.
2 Both he and I went on holiday.
3 He must be either mad or very wise.
2.作文练习答案
1 Both my sister and I went shopping.
2 We not only got very tired but very hungry as well.
3 It was three o'clock and we could not get lunch so we had a cup of tea.
3.多项选择题答案
1c 2b 3b 4a 5b 6c
7 d 8 b 9 a 10 a 11d 12 a