Unit 6 When was it invented单元跟踪练习（含解析）—2024年秋人教版九年级全册

Unit 6单元跟踪练习
一、阅读理解
阅读下面三篇语言材料，然后按文后要求做题
A
Do you have “smart clothes” Nowadays, some kinds of smart clothes have come into the market. These smart clothes are used not only for covering our bodies, but also for many other kinds of uses.
The“MP3 blue jacket” was invented by a clothing maker in Germany. This kind of jacket can be used as both an MP3 player and a mobile phone. A cloth keyboard was developed by an English company. It can be put onto your pants. Using it, you can control your computer easily anywhere. If it gets dirty, you can wash it and make it clean.
Smart clothes will get much smarter as the technology improves. Now scientists are developing other kinds of smart clothes. These clothes can show the temperature of your body and heat you up before you feel cold.
Other smart clothes to wear are special medical ones. They can tell the doctor when you are in danger. This technology can also provide important information about your environment. Shirts can warn (警告) you of serious pollution. Jackets with GPS can keep you from getting lost.
People are becoming interested in the idea. Maybe smart clothes will be common on Paris streets, and even in your home one day.
根据材料内容，选择正确答案。
1．People can use an MP3 blue jacket as a MP3 player and ______.
A．a television B．a radio C．a mobile phone D．a computer
2．A(n) ______ company developed a cloth keyboard.
A．Chinese B．American C．Japanese D．English
3．The underline word “it” in the second paragraph refers to ________ in the sentence.
A．a cloth keyboard B．a company C．a computer D．a pair of pants
4．According to the passage, smart clothes can’t ________.
A．tell the doctor when you are in danger B．teach you how to be smarter
C．show the temperature of your body D．keep you from getting lost
5．The best title of the passage is ________.
A．Smart Clothes in the Market B．Smart Clothes
C．Smart Clothes and Our Life D．Smart Clothes in Paris
B
According to UNESCO, a large number of children in villages in some African countries like Kenya and Tanzania do not go to school. They have to work to make money for their family. And more than half of people in these countries live without electricity.
A company is now working to solve both of these problems. It has created a special solar (太阳的) power station, which is in the shape of a cow, called “Solar Cow”, The company encourages parents in those poor villages to send their children to school by setting up Solar Cows at schools.
Just as its name suggests, the Solar Cow can charge batteries (给电池充电) called “Solar Milks”. The Solar Milks provide electricity for the families.
The batteries can only be charged using the Solar Cow, so children have to go to school to get the electricity. Every day, children put their batteries into the bottom of their school’s Solar Cow. They go to class while the batteries are being charged. At the end of the day, they take the charged batteries home.
Each fully- charged Solar Milk battery can charge a mobile phone three or four times, or a radio once or twice. The battery is also a flashlight, and it can provide ten hours of light. “My father used to travel two to three hours to the charging shop to charge his phone, and it cost a lot,” a boy said. “But now, he can use the battery I bring from school to charge his phone at home.”
Since 2018, this company has set up two Solar Cows in Kenya and one in Tanzania. The company also started to raise money for more Solar Cows to help the poor children in Africa.
根据材料内容选择最佳答案
6．How does the writer lead into the topic in Paragraph 1
A．By asking a question. B．By telling a joke.
C．By using an old saying. D．By giving a survey’s result.
7．What is a Solar Cow in Paragraph 2
A．An animal which can produce milk. B．A solar battery in the shape of milk.
C．A mobile phone in the shape of a cow. D．A solar power station in the shape of a cow.
8．What is the correct order for children to get the electricity for their families
a. Children go to school with batteries.
b. Children take the charged batteries home.
c. Children have classes while the batteries are being charged.
d. Children put the batteries into the bottom of their school’s Solar Cow.
A．a-d-c-b B．a-c-d-b C．b-d-c-a D．b-a-c-d
9．What can each fully-charged Solar Milk battery do
A．It can charge a radio three or four times. B．It can provide electricity for a Solar Cow.
C．It can provide ten hours of light as a flashlight. D．It can charge a mobile phone seven or eight times.
10．What does this passage mainly talk about
A．Solar Cows have provided electricity for the schools.
B．Some African children don’t go to school because they have to work.
C．More than half of people in Kenya and Tanzania live without electricity.
D．Solar Cows are solving the problems of electricity and helping the poor children in some African countries.
C
One day, Anna Du was walking along Castle Island’s beach. She found there were lots of plastic (塑料) pieces in the sea and some were too small to pick up. She began to think about how to solve the problem.
First, she did a survey. The result showed there were already 150 million tons of plastic in the sea, and every year there would be another 8 million tons. She realized something must be done. So she decided to invent a robot that could work underwater. She tried again and again. At last her ROV came out. It could move through water and pick up plastic pieces, especially the small ones.
With this ROV, Anna Du took part in the Broadcom Masters competition which is one of the top STEM (science, technology, engineering, math) competitions. It’s for young students around the world. This year, more than 5,000 students were interested in the competition, but only a few got the chance. Anna Du’s ROV caught a lot of attention. It had a camera with three different kinds of lights which could find plastic pieces easily. Dana Yoerger, an expert, said, “The ROV is nicely done for a12-year-old girl. It’s very clever.”
In fact, Anna Du is always learning to solve the world problems and her parents are always supporting (支持) her. At the age of five, she began to go to workshops to learn engineering skills. When she was asked about her future plan, she said, “I want to be an engineer because I like building things. I think many world problems can be solved with new inventions. Right now, I’m just caring about plastic problems because there is still a long way to go.”
根据材料内容，选择正确答案。
11．What is ROV
A．A STEM competition. B．An underwater robot. C．A nicely done camera. D．An excellent program.
12．What did Dana Yoerger think of ROV
A．He thought it was pretty and useful. B．He thought it was an easy invention.
C．He spoke highly of ROV and its inventor. D．He didn’t think ROV would change the world.
13．Which is the correct order of the following events
a. Anna Du invented her ROV. b. Anna Du walked along Castle Island’s beach.
c. Anna Du did a survey. d. Anna Du took part in the competition.
A．c-b-a-d B．b-d-c-a C．c-a-d-b D．b-c-a-d
14．What did Anna Du mean by saying “there is still a long way to go”
A．There are too many world problems. B．Her ROV will go to further places.
C．More work needs to be done to solve the problem. D．She will work hard to become an engineer.
15．What’s Anna like according to the text
A．Creative and helpful. B．Beautiful and clever. C．Active and outgoing. D．Friendly and funny.
二、完形填空
先通读下面短文，掌握大意，然后从短文后面各题所给的A、B、C、D四个选项中，选出最佳选项。
Things were often invented because there was a need for them. A 14-year-old boy from Canada didn’t like wearing a hat to school, so when he 16 on a February morning and found the temperature was -30℃, he had a 17 . He didn’t want his ears to freeze (冻僵) to ice! In order to solve it, he made “heated earmuffs” !
Bette Nesmith Graham was a typist (打字员), but she was not very good at typing. She often made mistakes in her work. To 18 her mistakes, she invented “Liquid Paper (修正液)”. It dried quickly and made her able to write on top of it — 19 this time.
To invent something isn’t necessarily difficult. The important thing is that it works and is 20 . Little Katie Harding, 5 years old, didn’t like walking to the school bus on 21 and rainy winter mornings. She kept walking into muddy puddles (泥坑) because she couldn’t see them, and so did her brother, who always walked with her and held the 22 over them. Katie’s simple but wonderful 23 was to fasten (使固定) a flashlight to the umbrella. The “muddy puddle spotter” was born.
Next time something doesn’t work in the way you want it to, do something about it! Things that have been invented can always be improved. New ideas can always be found. If you 24 , that’s OK. Then you know what doesn’t work! Somewhere out there, there is a new thing just 25 to be invented—by you.
16．A．gave up B．woke up C．cheered up D．hurried up
17．A．secret B．symbol C．celebration D．problem
18．A．break B．catch C．cover D．write
19．A．slowly B．correctly C．heavily D．widely
20．A．complete B．careful C．interesting D．helpful
21．A．magic B．dark C．dry D．sunny
22．A．umbrella B．balloon C．handbag D．postcard
23．A．surface B．style C．idea D．trouble
24．A．hurry B．fail C．challenge D．succeed
25．A．helping B．volunteering C．asking D．waiting
三、语篇填空
第一节阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺，意思完整。每空限填一词，每词限用一次。
which, manage, though, opinion, remain, difficult, wait, use, also, might
The pyramids (金字塔) have been lying on the lower west bank of the Nile for nearly 4,000 years. They are not only the burial places for the pharaohs (法老) but 26 the treasure of all human beings. We call them jinzita because of their shape 27 looks like the Chinese character “jin”! Until now, there have still been plenty of mysteries 28 to be solved!
The largest pyramid is the Pyramid of Khufu: 756 feet long on each side and 481 feet tall. There are about 2.3 million blocks (石块). How the ancient builders 29 to build such a large structure has never been fully answered, but the effort clearly required brains and brawn (体力). If 7-ton trucks are 30 to pick up all the blocks, we need about 978. 286 trucks!
31 there were enough workers, they couldn’t carry the heavy blocks. Some people think they 32 put the woody stick under the blocks as the wheel. But it needs a lot of wood. The number of trees can’t meet the requirement. Others hold an 33 that they used the water transport (水上运输) . However, with no tool to load (装载) or unload the blocks, it seems more 34 than the first idea. In fact, all the blocks must be carried from the east of the Nile. So the mystery 35 a mystery now!
第二节 阅读下面短文，根据语境、音标或所给单词的提示，在每个空格内填入一个恰当的词，要求所填的词意义准确、形式正确，使短文意思完整、行文连贯。
With the 36 /d vel pm nt/ of science and technology, teachers have lots of methods to take their lessons now. One of them is PPT. It’s very 37 /'helpfl/ for their teaching. But their hands are often injured because 38 the wrong way during the use of PPT. This makes them feel uncomfortable when they use PPT.
Luckily, a kind of new gloves has 39 (solve) the problem. By putting on these special gloves, teachers can stay warm and don’t have to worry about 40 (hurt) their hands while using touchscreens. The special gloves were invented by Tang Renjia, 41 junior 3 student from Suzhou Science and Technology Town Foreign Language School. She 42 (receive) a patent certificate (专利证书) issued by the State Intellectual Property Office for her invention.
Two years ago, Tang noticed that her teacher’s 43 (finger) were injured after using a touchscreen for long periods of time. Tang wanted to do something about this. She learned 44 to use high-technology materials to make gloves for her teacher. Her multi-functional (多功能的) gloves can keep people’s hands warmer and 45 /pr 'tekt/ their skin when they are using touchscreen devices.
四、补全对话
请阅读下面对话，根据对话内容从下面的七个选项中选择五个填入空白处，使对话通顺、合理，意思完整。一空一句。
Andy: Hi, Tina! I’ve sent you an e—mail. Have you got it
Tina: Sorry, I haven’t. 46
Andy: Why not
Tina: There’s something wrong with my computer. 47
Andy: Can you repair it
Tina: I don’t think so. It is too old. 48
Andy: That’s good news! You know, I’ve just got a new computer.
Tina: 49
Andy: Last week.
Tina: Where was it made Was it made in Germany
Andy: No, it was made in my home.
Tina: What 50
Andy: You see, my father bought different parts of the computer and then put them together. That’s how the computer was made in my home.
A．It doesn’t work.
B．When did you get it
C．I can repair it by myself.
D．What did you write in your e-mail
E．I haven’t checked my e-mails today.
F．How could it be made in your home
G．My father wants to buy a new one for me.
五、书面表达
随着手机的发明和应用，我们的联系方式、交流方式甚至是生活方式都发生了巨大改变。暑假里，很多同学每天和手机形影不离。请根据表格内容，以“My Favorite Invention”为题，简单介绍手机发明的背景和给人们带来的变化（共三点，自己添加一点），同时阐述作为青少年的你们应当如何运用手机的一些看法（至少两点）。
My Favorite Invention
Invention mobile phone
Inventor Martin Cooper (from America)
Time 1973
Changes 1. more convenient to communicate with others 2. no longer take photos with cameras 3. ...
Your opinions about how to use them well 1. ... 2. ...
注意：
（1）短文须包括表中所含要点，可适当增加细节
（2）短文首句仅供选择使用，不计入总词数
（3）词数：80—100
My Favorite Invention
Mobile phones are without doubt one of the most useful inventions. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案
1．C 2．D 3．A 4．B 5．C
【解析】本文主要介绍了智能服装在生活中的用途。
1．细节理解题。根据“The ‘MP3 blue jacket’ was invented by a clothing maker in Germany. This kind of jacket can be used as both an MP3 player and a mobile phone.”可知，MP3蓝色夹克可以用作MP3播放器和手机。故选C。
2．细节理解题。根据“A cloth keyboard was developed by an English company.”可知，布键盘是由一家英国公司研发的。故选D。
3．词句猜测题。根据“A cloth keyboard was developed by an English company. It can be put onto your pants. Using it, you can control your computer easily anywhere. If it gets dirty, you can wash it and make it clean.”可知，“it”指代的是上文提到的布键盘“a cloth keyboard”。故选A。
4．细节理解题。根据“This technology can also provide important information about your environment. Shirts can warn (警告) you of serious pollution. Jackets with GPS can keep you from getting lost.”可知，智能衣物可以在你危险时告诉医生，可以显示你的体温，可以防止你迷路，但并不能教你如何变得更聪明。故选B。
5．最佳标题题。本文主要介绍了智能服装在生活中的用途。故选C。
6．D 7．D 8．A 9．C 10．D
【解析】本文主要讲述了一家公司发明了特殊太阳能发电站，致力于解决像肯尼亚和坦桑尼亚这样的一些非洲国家的孩子无法上学及人民缺少电能的问题。
6． 细节理解题。第一段提供了一些统计结果，比如“a large number of children in villages in some African countries…do not go to school”以及“more than half of people in these countries live without electricity”，以此引出话题。故选D。
7． 细节理解题。根据第二段“It has created a special solar power station, which is in the shape of a cow, called ‘Solar Cow’.”可知，Solar Cow是一个牛形状的太阳能发电站。故选D。
8．细节理解题。根据“The batteries can only be charged using the Solar Cow, so children have to go to school to get the electricity. Every day, children put their batteries into the bottom of their school’s Solar Cow. They go to class while the batteries are being charged. At the end of the day, they take the charged batteries home.”可知孩子们为家庭供电的正确顺序是：孩子们带着电池上学(a)→孩子们把电池放在学校太阳能牛的底部(d)→孩子们上课期间电池在充电(c)→孩子们把已充电的电池带回家(b)。故选A。
9．细节理解题。根据“The battery is also a flashlight, and it can provide ten hours of light.”可知，每个充满电的Solar Cow的电池可以作为手电筒提供10小时的光线。故选C。
10．主旨大意题。文章主要介绍“Solar Cow”，这一发明在一些非洲国家同时解决了儿童不上学和多半人没有电用两个问题。故选D。
11．B 12．C 13．D 14．C 15．A
【解析】本文主要讲述了Anna Du为解决海洋垃圾问题发明ROV的过程。
11．细节理解题。根据“So she decided to invent a robot that could work underwater. She tried again and again. At last her ROV came out.”可知，Anna Du决定发明一个可以在水下工作的机器人，经过努力后ROV问世了，所以ROV是一款水下工作的机器人。故选B。
12．细节理解题。根据“Dana Yoerger, an expert, said, ‘The ROV is nicely done for a12-year-old girl. It’s very clever.’”可知，专家说ROV是一个12岁女孩做出来的，做得很好且很聪明，可见专家对ROV及其发明者评价很高。故选C。
13．细节理解题。根据“One day, Anna Du was walking along Castle Island’s beach.”、“First, she did a survey.”、“At last her ROV came out.”和“With this ROV, Anna Du took part in the Broadcom Masters competition...”可知，Anna Du在沿着城堡岛的海边散步时决定解决海里垃圾的问题，接着她先进行了调查，经过一系列努力后机器人ROV问世，之后她带着ROV参加了大师赛。对应的题干顺序为b-c-a-d。故选D。
14．推理判断题。根据“I think many world problems can be solved with new inventions. Right now, I’m just caring about plastic problems because there is still a long way to go.”可知，Anna Du认为许多世界问题可以通过新的发明来解决，现在她只关心塑料的问题，可见未来解决这个问题还需要做很多的工作。故选C。
15．推理判断题。根据“She found there were lots of plastic pieces in the sea and some were too small to pick up. She began to think about how to solve the problem.”和“At last her ROV came out.”可知，Anna Du发现海洋垃圾后开始想办法解决这个问题，经过努力并最终研发出ROV，可见她是愿意帮助别人且富有创意的人。故选A。
16．B 17．D 18．C 19．B 20．D 21．B 22．A 23．C 24．B 25．D
【解析】本文是一篇说明文。文章主要通过具体例子展示了创新往往来源于日常生活的需求和问题，并鼓励读者在面对问题时积极寻找解决方案，因为新的事物总是在等待被发现和创造。
16．句意：一个来自加拿大的14岁男孩不喜欢上学时戴帽子，所以当他在一个二月的早晨醒来，发现气温低至零下30摄氏度时，他遇到了一个问题。
gave up放弃；woke up醒来；cheered up振作起来；hurried up赶快。结合“on a February morning”和备选词汇可知，此处是指早晨他醒来了。故选B。
17．句意：一个来自加拿大的14岁男孩不喜欢上学时戴帽子，所以当他在一个二月的早晨醒来，发现气温低至零下30摄氏度时，他遇到了一个问题。
secret秘密；symbol象征；celebration庆祝；problem问题。结合上下文语境可知，他不喜欢戴帽子，又不想耳朵受冻，于是就产生了一个问题。故选D。
18．句意：她经常在工作中犯错。为了掩盖这些错误，她发明了“修正液”。
break打破；catch抓住；cover遮盖；write写。结合语境和备选词汇可知，此处是指为了覆盖她的错误，她发明了“修正液”。故选C。
19．句意：这种涂改液干得非常快，让她能够在上面重新书写——这次是正确的。
slowly慢慢地；correctly正确地；heavily沉重地；widely广泛地。结合语境可知，“修正液”覆盖错误后，当然是为了正确地书写文字。故选B。
20．句意：重要的是它要有效并且有用。
complete完整的；careful仔细的；interesting有趣的；helpful有用的。根据“Things were often invented because there was a need for them.”和备选词汇可知，此处是指发明的东西要有用，要能解决生活中的问题。故选D。
21．句意：小凯蒂·哈丁只有5岁，她不喜欢在黑暗多雨的冬日早晨走到校车那里去。
magic魔力的；dark黑暗的；dry干燥的；sunny阳光充足的。结合下文“she couldn’t see them”和备选词汇可知，此处是光线不好，黑暗的早晨。故选B。
22．句意：因为看不见，她总是踩到泥泞的水坑，她的哥哥也是如此，他总是和她一起走，并为他们撑伞。
umbrella雨伞；balloon气球；handbag手提包；postcard明信片。结合下文“to fasten a flashlight to the umbrella”可知，此处是指她的哥哥为他们撑雨伞。故选A。
23．句意：凯蒂想出了一个既简单又绝妙的主意：在雨伞上固定一个手电筒。
surface表面；style样式；idea想法；trouble麻烦。结合“to fasten a flashlight to the umbrella”和备选词汇可知，此处是指凯蒂解决这个问题的想法是在雨伞上固定一个手电筒。故选C。
24．句意：如果你失败了，那也没关系。
hurry匆忙；fail失败；challenge挑战；succeed成功。结合“Then you know what doesn’t work!”和备选词汇可知，此处是指如果失败了，没有关系，至少知道什么东西是没用的。故选B。
25．句意：在这个世界的某个地方，有一个新东西正等待着你去发明——由你来创造。
helping帮助；volunteering自愿做；asking询问；waiting等候。结合“Somewhere out there”和备选词汇可知，此处是指有一个新的东西等待着被发明。故选D。
26．also 27．which 28．waiting 29．managed 30．used 31．Though 32．might 33．opinion 34．difficult 35．remains
【解析】本文主要介绍了埃及金字塔及猜测金字塔是如何建造成的。
26．句意：它们不仅是法老的墓地，也是全人类的宝藏。根据文中“They are not only the burial places for the pharaohs but…the treasure of all human beings.”及所给词可知，空处指的是而且也是人类的宝藏，not only…but also…“不仅……而且……”，并列连词，符合语境。故填also。
27．句意：我们之所以称它们为金子塔，是因为它们的形状看起来像汉字“金”！根据文中“We call them jinzita because of their shape…looks like the Chinese character ‘jin’!”及所给词可知，后空句子用来修饰空前名词shape“形状”，句子应为关系代词which引导的限制性定语从句，在从句中作主语。故填which。
28．句意：至今，仍有许多谜团有待解开！根据文中“ Until now, there have still been plenty of mysteries…to be solved!”及所给词可知，仍有谜团等待被解开，wait“等待”，动词，应用其现在分词形式作后置定语，修饰名词mysteries“谜团”。故填waiting。
29．句意：古代建筑商是如何建造如此巨大的建筑的，这一问题从未得到完全解答，但显然需要脑力和体力。根据文中“How the ancient builders…to build such a large structure has never been fully answered”及所给词可知，空处指的是设法建造，其英文表达为manage to do sth.，句子时态为一般过去时，谓语动词应为其过去式形式。故填managed。
30．句意：如果用7吨的卡车来搬运所有的石块，我们需要大约978辆。286辆卡车！根据文中“If 7-ton trucks are…to pick up all the blocks, we need about 978. 286 trucks!”及所给词可知，空处指的是卡车被用来搬运石块，句子谓语部分为被动语态，其结构为be done，use“用”，其过去分词形式used符合语境。故填used。
31．句意：虽然有足够的工人，但他们搬不动那些沉重的积木。根据文中“here were enough workers, they couldn’t carry the heavy blocks.”及所给词可知，逗号前后句子之间为让步关系，应为though“虽然”引导的让步状语从句，位于句首，首字母应大写。故填Though。
32．句意：有些人认为他们可能会把木棍放在木块下面作为轮子。根据文中“Some people think they…put the woody stick under the blocks as the wheel.”及所给词可知，空处指的是可能会把木棍放在木块下面作为轮子，情态动词might“可能”符合语境。故填might。
33．句意：其他人则认为他们使用了水运。根据文中“Others hold an…that they used the water transport”及所给词可知，空处指的是其他人有想法，hold an opinion“持有想法”，固定短语，符合语境。故填opinion。
34．句意：然而，由于没有工具来装载或卸载这些块，这似乎比第一个想法更难。根据文中“it seems more…than the first idea.”及所给词可知，空处指的是更加困难，more后跟形容词原级，difficult“困难的”，符合语境。故填difficult。
35．句意：所以这个谜现在仍然是个谜！根据文中“So the mystery…a mystery now!”及所给词可知，空处指的是remain“保持”，句子时态为一般现在时，主语the mystery，名词单数，其谓语动词remain应用其三单形式。故填remains。
36．development 37．helpful 38．of 39．solved 40．hurting 41．a 42．received 43．fingers 44．how 45．protect
【解析】本文讲述苏州科技镇外国语学校的初三学生唐人佳发现老师上课时使用触摸屏很长时间之后手受伤，于是发明了一种特殊的手套；戴上这种特殊的手套，老师们能保持温暖，当使用触摸屏的时候不再担心会让手受伤。
36．句意：随着科学技术的发展，教师现在有很多方法来上课。根据音标/d vel pm nt/可知，此处应填名词development，表示“发展”。故填development。
37．句意：这对他们的教学很有帮助。根据音标/'helpfl/可知，此处应填形容词helpful，表示“有帮助的”。故填helpful。
38．句意：但是在PPT的使用过程中，他们的手却经常因为使用方式不对而受伤。空后是名词“the wrong way”，结合“because”可知，此处是介词短语because of“因为”。故填of。
39．句意：幸运的是，一种新型手套解决了这个问题。空处用过去分词solved，与“has”构成现在完成时。故填solved。
40．句意：通过戴上这种特殊的手套，老师们可以保持温暖，不用担心在使用触摸屏时伤到手。介词“about”后跟动名词作宾语。故填hurting。
41．句意：这种特殊的手套是由苏州科技城外国语学校初三学生唐人佳发明的。空处泛指“一名初三学生”，且junior以辅音音素开头。故填a。
42．句意：她的发明获得国家知识产权局颁发的专利证书。根据“The special gloves were invented by Tang Renjia”可知，本句是一般过去时，动词需用过去式。故填received。
43．句意：两年前，唐注意到她的老师在长时间使用触摸屏后手指受伤。根据“were”可知，主语是复数形式。故填fingers。
44．句意：她学会了如何使用高科技材料为老师制作手套。how to do sth“如何做某事”，作动词learned宾语。故填how。
45．句意：她的多功能手套可以让人们在使用触屏设备时手更暖和，保护皮肤。根据音标/pr ’tekt/可知，此处应填动词protect，表示“保护”。故填protect。
46．E 47．A 48．G 49．B 50．F
【解析】本文主要讲述了由于电脑坏了，没有检查邮件所引发的一则对话。
46．根据“Why not ”可知，没有查看邮件，选项E“我今天没有查看电子邮件。”符合语境，故选E。
47．根据“There’s something wrong with my computer.”可知，电脑坏了，选项A“它不工作了。”符合语境，故选A。
48．根据“That’s good news! You know, I’ve just got a new computer.”可知，此处表达一个新电脑，选项G“我爸爸想给我买一个新的。”符合语境，故选G。
49．根据“Last week.”可知，询问时间，选项B“你什么时候拿到的？”符合语境，故选B。
50．根据“What ”可知，对在家里制造电脑感到惊讶，选项F“怎么可能在你家里做呢？”符合语境，故选F。
五．例文
My Favorite Invention
Mobile phones are without doubt one of the most useful inventions. They were invented by Martin Cooper from America in 1973.
With the development of technology, mobile phones have brought about many changes in our lives. Firstly, they make it more convenient for us to communicate with others. We can make calls, send messages, and even video chat with people anywhere in the world. Secondly, we no longer need to carry cameras with us as mobile phones can take high-quality photos. Moreover, we can use mobile phones to access the Internet, read news, play games, and do many other things.
However, as teenagers, we should use mobile phones wisely. We should not spend too much time playing games or browsing the Internet. Instead, we can use them to learn knowledge, read books, and listen to music. Also, we should be careful when using mobile phones and avoid being addicted to them.
In conclusion, mobile phones have changed our lives in many ways, but we should use them properly to make our lives more meaningful and enjoyable.
【解析】
①题材：本文是一篇材料作文；
②时态：主要是一般现在时；
③提示：写作提示已给出，考生应注意关于手机给人们带来的变化要写三点并且至少阐述两点关于青少年应该如何运用手机，适当发挥，使上下文连贯。
第一步，说明自己最喜欢的发明是什么，并且介绍发明者以及发明时间；
第二步，介绍手机给人们带来的变化以及作为青少年应当如何运用手机；
第三步，说明手机改变了人们的生活，我们应该恰当地使用手机。
①development发展
②convenient便利的
③instead相反
④properly恰当地
①Secondly, we no longer need to carry cameras with us as mobile phones can take high-quality photos.（as引导的原因状语从句）