北师大版（2019）必修 第二册Unit 4 Information technology Lesson 1 Avatars课时练习（含答案）

Unit 4 Information Technology
Topic Talk & Lesson 1 Avatars
单句填空（在空白处填入1个适当的单词或括号内单词的正确形式）
We would appreciate it if you could reply at your earliest______________(convenient).
See our ______________(select) of autumn favourites and take your pick.
A ______________(various) of high-tech tools can help you track of your students’ progress.
Nowadays, there is a sharp increase in children’s______________(creative), for they are greatly encouraged to develop their talents.
You mustn’t view what has happened______________a negative light.
He believes that students should be encouraged to experiment______________new ideas.
They are just tricking you______________buying what you don’t need.
She admits to______________(be) very strict with her children.
I am addicted to______________(collect) newspaper articles and cut out those that I think are interesting and of high quality.
James has just arrived, but I didn’t know he______________(come) until yesterday.
单句表达（根据提示补全句子）
这本新书一经出版，就大获成功。( instant)
The new book was ______________ ______________ ______________as soon as it was published.
人们越来越关注环境保护。(concern)
There is growing ______________ ______________environmental protection.
美式英语和英式英语在发音和拼写上或多或少有些不同。
American English is______________ ______________ ______________different from British English in pronunciation and spelling.
有些人把这看作是一个分享观点，激励学生的机会。(view)
Some people ________ _________ ________ _________ __________to share ideas and motivate students.
为了确保乘客的安全，改善交通状况，一项新的法律已开始实施。(effect)
A new law ______________ ______________ ______________ ______________to ensure the safety of the passengers and improve the traffic conditions.
我正期盼着下周去美术馆参观。(look forward to)
_________ ________ __________ ___________ __________ ______________the art gallery next week.
尽管这项政策仍然有改进的空间，但我觉得它利大于弊。(room)
Although ___________ ____________ ______________ ______________ ______________improvement to this policy, I think it is still a good one which brings more good than harm.
我清晰地记得他在展览中画的那个穿着粉色衣服的女孩。(dress)
I vividly remember the girl ______________ ______________ ______________he drew in the exhibition.
课文改编填空（阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。）
Avatars, which people use when exploring the Internet, are the digital______________(identify) people created to communicate and express______________(they). They first appeared in role-playing computer games in the 1980s. Nowadays, avatars have such a wide variety of forms and uses ______________ they are everywhere.
______________avatars people choose say a lot. People tend to create avatars with features similar______________their personalities, which look like them to a certain extent. However, nearly all avatars are tall, young and good-looking, for people______________(obvious) make improvements and experiment with new things in a more desirable way.
Avatars give people a lot of room for creativity. They ______________(enable) to create new identifies, from dressing the avatars in fancy clothes to trying______________(be) someone of the opposite sex. Many users even have several avatars, each one for a specific occasion: for example, a______________(sense) one for work and a silly one for fun.
So far, the use of avatars______________(concern) some people--there are people spending too much time in virtual worlds and cheating online. At the same time, others view it in a more positive light, looking forward to the brilliant future of avatars.
1,______________ 2,______________ 3,______________ 4,______________ 5,______________
6,______________ 7,______________ 8,______________ 9,______________ 10,______________
语法填空（阅读下面的短文，在空白处填入1个适当的单词或括号内单词的正确形式）
The chase for extreme selfies(自拍) killed 259 people between 2011 and 2017, a 2018 global study has shown. _____1_____study also found that selfie deaths are becoming more common, increasing from 3 in 2011 _____2____93 in 2017. Transport accidents and falling were found ____4_____(be) the most common causes of death. But death caused by animals, fire and firearms also appeared______4______(frequent) in reports from around the world. Researches at the U.S. National Library of Medicine(NLM) suggest that “no selfie zones” should be introduced in _______5_____(danger) places to reduce deaths. These would include the tops of______6______(mountain), tall buildings and lakes, where many of the deaths happened.
In May 2018, a taxi____7____(drive) Prabhu Bhatara visiting a park in eastern India was bitten to death by a bear while _________8_________(try) to take a selfie with the wounded animal. Tomer Frankfurter______9________(die) in California’s Yosemite National Park in September after falling 250 metres_______10_______he was trying to take a selfie.
1,______________ 2,______________ 3,______________ 4,______________ 5,______________
6,______________ 7,______________ 8,______________ 9,______________ 10,______________
拓展阅读训练
阅读理解
A
The Internet has got into all the fields of our life. We can study and work on it. We can find a job on it. We can communicate on it. We can treat friends on it. We can buy and sell on it. We can do almost everything on the Internet, and almost anywhere, anytime.
However, although the Internet provides services for us, it is silently getting our privacy(隐私) to some degree. The services on most websites require our personal information. If we want to enjoy these services, we have to provide much of our information, including our names, sex, addresses, telephone numbers and sometimes bank accounts(帐户). Because weak network sometimes is unsafe, our information might be open, stolen or sold. Even sometimes it will be used freely by others.
Considering（考虑到...） the above mentioned, you must pay attention to the safety when using the Internet. First, when you need Internet service, you should always look through those big legal(合法的) websites. Second, if the service requires important personal information, you should think twice before you type it in. Third, store your own important card key(电子钥匙) and don’t tell others easily.
According to the passage, we shouldn’t ______by using the Internet.
A．learn English B．give our friends’ information to others
C．chat with friends D．look for jobs
The underlined word “it” refers to ______.
A．the telephone number B．the name C．the information D．the bank account
3. Which of the following ways is correct to protect our information on the Internet
a. Surf the safe Web . b. Think over and over before typing it in.
c. Don’t chat with friends on line d. Don’t use your key easily.
A．a,b,c. B．b,c,d. C．a,b,d. D．a,c,d.
4. What can we learn from the passage
A．Don’t believe others if you don’t know them.
B．Remember never use the ID card on the Internet.
C．Never use the Internet in the future.
D．From now on, we must pay attention to the safety of the information on line.
B
Every human being, no matter what he is doing, gives off body heat. The usual problem is how to deal with it. But the designers of the Johnstown campus(校园)of the University of Pittsburgh set themselves the opposite problem—how to collect body heat. They have designed a collection system which uses not only body heat, but the heat given off by such objects as light bulbs(灯泡)and fridges as well. The system works so well that no commonly used fuel is needed to make the campus's six buildings comfortable.
　　Some parts of most modern buildings theatres and offices as well as classrooms are more than amply(充分地)heated by people and lights and they sometimes must be air-conditioned even in winter. The technique of saving heat and redistributing(再分配)it is called“heat recovery”. A few modern buildings recover heat, but the University's system is the first to recover heat from some buildings and reuse it in others.
　　Along the way Pitt has learned a great deal about some of its heat producers. The harder a student studies, the more heat his body gives off. Male student send out more heat than female students, and the larger the student is, the more heat he produces. It can be concluded(总结)that the hottest prospect for the Johnstown campus would be a hard-working, over-weight male genius(天才).
1．The heat in the heating system of the Johnstown campus is supplied ________ ________.
A．by human bodies.
B．by both human bodies and other heat-giving objects
C．by both human bodies and commonly used fuel
D．by human bodies, other heat-giving objects and commonly used fuel
2．________ would produce the least amount of heat.
A．A fat boy student who is clever and studies hard.
B．A thin girl student who is not clever and does not work hard.
C．A thin boy student who is clever and studies hard.
D．A fat girl student who is both clever and hard-working.
3. What does the passage mainly talk about
A. Recovery of boys’ heat in the University of Pittsburgh.
B. Modern buildings’ heat system.
C. A new heat recovery system in the University of Pittsburgh.
D. The best way to save fuel or electricity.
4. How is the passage developed
A. By telling facts. B. By following time order. C. By analysing causes D. By making comparisons.
7选5
Do you constantly use the computer, whether for learning or entertainment Computers give off radiation（辐射） that is bad for your health, but here are some ways to protect yourself from computer radiation．
__1.__Green tea can be absorbed（吸收） by the body easily into a form of vitamin A, which helps reduce radiation．__2.__
It is advisable to attach a radiation filter plate（辐射过滤板）in front of your computer’s screen．Make sure to avoid putting any mental substances near your computer as these may have reflected some of the electromagnetic waves that are harmful to your health．__3.The brighter the screen the higher the radiation there will be and vice versa．
You can also put some radiation-absorbing plants such as several cacti near your computer to prevent radiation．
Make sure you do a skincare protection before sitting in front of the computer ．___4. Wash your face soon after using the computer in order to reduce 70% of the radiation．
__ 5.___ An old computer in general, has one to two times more radiation released than the new one within the same distance．
A．Apply a facial mask to protect yourself．
B．And adjust the sound level on your computer．
C．And adjust the brightness of your computer screen．
D．The most efficient way is by drinking some coffee regularly．
E．If possible, purchase a new computer instead of using an old model computer．
F．The simplest way is by drinking two or three cups of green tea every day．
G．It also helps keep your eyes see things clearly in the dark by improving the visual ability．
答案
单句填空
1, convenience 2, selection 3, variety 4, creativity 5, in
6, with 7, into 8, being 9, collecting 10, would come/was coming
单句表达
1, an instant success 2, concern for/about/over/with
3, more or less 4, view it as a chance/view it as an opportunity
5, has come into effect 6, I am looking forward to visiting
7, there is still room for 8, dressed in pink
课文改编填空
1, identities 2, themselves 3, that 4, The 5, to
6, obviously 7, are enabled 8, being 9, sensible 10, has concerned
语法填空
1, The 2, to 3, to be 4, frequently 5, dangerous
6, mountains 7, driver 8, trying 9, died 10, while/when/as
拓展阅读训练
A 1-4 BCCD B 1-4 BBCA 7选5 FGCAE