（1）She didn\t know which blouse to buy. ( = She didn\t know which blouse she should buy.) 她不知道该买哪件衬衫。
（2）I\m thinking about what to say. ( = I\m thinking about what I should say. ) 我在考虑说什么。
5．Now it is enjoyed by people all over the world. 现在全世界的人都喜欢这项运动。
is enjoyed是被动语态，by people all over the world 被全世界的人。这一句也可改写成： People all over the world enjoy it now.
6．It\s neither too hot nor too cold all the year round. 全年天气既不太冷也不太热。
neither… nor… 既不……也不……，它们可以用来连接相同的两个句子成分或词类。如果连接的是主语，则谓语与第二个主语保持一致。
例：(1) He isn\t a student. I\m not a student.
Neither he nor I am a student.
(2) He doesn\t speak French. He doesn\t speak Japanese.
He speaks neither French nor Japanese.
Neither…nor的完全肯定形式是：both…and或not only…but also。
但both…and如连接主语，则谓语动词用复数，not only…but also与第二个主语保持一致。
例：He likes singing. I like singing, too.
Both he and I like singing. ( = Not only he but also I like singing. )
7. Li Lida, a 12-year-old schoolboy first tried to cross the Qiongzhou Channel in June, 2000.
在2000年6月，一个12岁的男生李立达第一次试着横渡琼州海峡。
（1）21-year-old在这里可以看作是一个合成词，作形容词用，用来修饰schoolboy。在英语中，\"数字+量词\"构成的复合形容词，中间要加连字符号，量词用单数形式。
例如：100-metre race 一百米赛跑。
two-month holiday两个月的假期。
试比较：The boy is five years old.
He s a five-year-old boy.
（2）cross为动词，是\"越过、穿过\"的意思。意思相近的词有：through（prep）．穿过，指从……（内部或空间）中穿行，across（prep）．横过，指从物体的表面由这边到另一边。另外，through可作副词用。
cross与across含义基本相同，但cross是动词。over也可表示\"横过；通过\"，着重强调越过某物，从高空中越过。
例：（1）Jack was through with the English test.
杰克通过了这次英语测试。
（2）The old lady crossed the street carefully and slowly.
那老妇人慢慢地、小心地走过街去。
（3）The ship passed through the bridge.
轮船过了桥。（从桥下穿过）
（4）The boy climbed over the wall to get his ball.
那男孩爬过墙去取球。
（5）The blind man walked across the street slowly.
那盲人慢慢地走过街道。
8．His teacher, Mr Feng, spoke highly of his students 中的speak highly of ?
这里的speak highly of是指\"高度评价\"，\"赞扬\"的意思。例如：
The teachers present all spoke highly of his spirits.
在场的老师都称赞他的精神。
We should speak highly of his saving the girl in the cold water against the risk of his life.
他冒着生命危险，在寒冷的水中救出这个女孩子，应该受到赞颂。
He was spoken highly of by the girl\s parents.
他受到了女孩子父母的赞扬。
有关speak的一些词组：
speak ill of 说……坏话
speak for 充当……代言人
speak for oneself 为自己辩护
speak sb fair 对某人彬彬有礼说话
to speak of 值得一提（常用于否定句中）
9．He is not only the pride of our school but also the pride of all the people in Hainan.
他不仅是我们学校的骄傲，也是海南全体人民的骄傲。
not only…but also意思是\"不仅……而且\"，应连接相同的语法成分。当连接主语时，谓语动词采用就近原则，即随后面的主语而定。例如：
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