中学生世界九年级英语沪教版54制
注：当前书本只展示部分页码答案，查看完整答案请下载作业精灵APP。练习册中学生世界九年级英语沪教版54制答案主要是用来给同学们做完题方便对答案用的，请勿直接抄袭。
always took them hours to chat 4 ______ online. David sent her a photo. He looked tall, handsome and sunny.
Jean planned to go to San Francisco to meet David personally. She didn't tell him about her plan, so that she could give him a 5 ______ for his birthday, with some DVDs of their favourite rock singer, Michael Jackson. 6 ______, when David opened the door for Jean, she was disappointed to see a twelve-year-old boy named Jim!
1. ______ 2. ______ 3. ______ 4. ______ 5. ______ 6. ______
答案：4. G
5. A
6. C
解析：4. 修饰动词chat用副词，happily（开心地）符合语境。
5. give sb. a surprise意为“给某人一个惊喜”，符合Jean没告诉David计划的语境。
6. However（然而）表示转折，Jean本以为David是年轻人，结果是个小男孩，感到失望。
III. Complete the sentences with the given words in their proper forms.
1. The computer was invented in the
twentieth
century. (twenty)
2. My sister's schoolbag is pink while
mine
is a brown one. (I)
3. Hans won first prize in the Chinese Speech
Competition
. (compete)
4. China has
succeeded
in setting up its own space station. (success)
5. My dad's car doesn't work
properly
. It needs repairing. (proper)
6. Jenny was an
independent
girl. She refused Tony's offer. (independence)
7. Miss Guo often tells funny
jokes
to make us relaxed in class. (joke)
答案：1. twentieth
2. mine
3. Competition
4. succeeded
5. properly
6. independent
7. jokes
解析：1. 表示“第二十世纪”用序数词，twenty的序数词是twentieth。
2. 空格后无名词，用名词性物主代词mine，指代“my schoolbag”。
3. Speech Competition意为“演讲比赛”，是固定短语，专有名词首字母大写。
4. 助动词has后接过去分词，success的动词是succeed，过去分词是succeeded。
5. 修饰动词work用副词，proper的副词是properly。
6. 修饰名词girl用形容词，independence的形容词是independent。
7. joke是可数名词，前面无冠词，用复数jokes。
IV. Complete the following sentences as required.
1. William has never visited China. (改为一般疑问句)
______ William ______ visited China?
2. No guards stopped the Greeks entering the city, ______ ______? (补全反意疑问句)
3. Shanghai is a very beautiful city. (改为感叹句)
______ ______ beautiful city Shanghai is!
4. I've learnt English since primary school. (对画线部分提问)
______ ______ have you learnt English?
5. All the kids went for an outing but Alice didn't. (保持原句意思)
All the kids went for an outing ______ ______ Alice.
6. so heavy, couldn't carry it, was, I, the suitcase, that (连词成句)
答案：1. Has; ever
2. did they
3. What a
4. How long
5. except for
6. The suitcase was so heavy that I couldn't carry it.
解析：1. 现在完成时的一般疑问句将助动词has提到句首，never改为ever。
2. 反意疑问句遵循“前否后肯”原则，前面no表示否定，疑问部分用肯定，stopped是实义动词过去式，用助动词did，主语the Greeks用they代替。
3. 感叹句中心词是可数名词单数city，用what a引导，结构为What a+形容词+可数名词单数+主语+谓语！
4. 对时间长度提问用how long。
5. except for意为“除了……之外”，符合语境。
6. 主语是The suitcase，谓语是was，so...that...引导结果状语从句，按主谓宾顺序连接。
V. Choose the best answer.
Parents are often amazed at their children's ability to deal with new technology. A five-year-old can find new apps on a mobile phone that his parents have never dreamed of.
Kids are smarter than their parents and it has been proved on IQ tests around the world. In addition, these tests show that over the last one hundred years, each younger generation has got higher intelligence than the older one.
This rise in intelligence over generations is called "Flynn Effect". It was named after James Flynn, an American scientist who first invented it in 1982. According to his study, average IQ scores have risen by fourteen points with each new generation. Flynn believes that humans are getting smarter because of technology development, which has helped our brains develop better.
But being smart doesn't always make you a talent. Wisdom grows with age, experience and hard work. Therefore, a really smart child will always improve, based on the wisdom of his parents and grandparents.
( )1. According to the passage, children are ______ their parents at dealing with new technology.
A. as good as
B. better than
C. as poor as
D. poorer than
( )2. The statement that children are cleverer than their parents is ______.
A. certain
B. untrue
C. uncertain
D. false
( )3. According to James Flynn, the main reason for "Flynn effect" ______.
A. is known to everyone
B. is technology development
C. has not been proved
D. has been widely accepted
( )4. Based on Flynn, on average human IQ scores have increased by ______ with each generation.
A. 4%
B. 14%
C. 40%
D. 400%
( )5. To be a talent, a child with a high IQ still needs the following EXCEPT ______.
A. age
B. hard work
C. experience
D. experiment
答案：1. B
解析：根据“Parents are often amazed at their children's ability to deal with new technology.”可知孩子比父母更擅长处理新技术，选B。
2. A
解析：根据“Kids are smarter than their parents and it has been proved on IQ tests around the world.”可知孩子比父母聪明是被证明的，是确定的，选A。
3. B
解析：根据“Flynn believes that humans are getting smarter because of technology development”可知弗林效应的主要原因是技术发展，选B。
4. B
解析：根据“average IQ scores have risen by fourteen points with each new generation”可知平均智商分数每代增加14分，即14%，选B。
5. D
解析：根据“Wisdom grows with age, experience and hard work.”可知成为天才需要年龄、经验和努力，不包括“experiment（实验）”，选D。
