北师大版一轮复习必修二 单元练习　unit 4　cyberspace

北师大版一轮复习必修二 单元练习　Unit 4　Cyberspace
Ⅰ.单项填空
1．________our earth，or else it will be no longer fit for us to live on.
A．Protected B．To protect
C．Protecting D．Protect
2．Once out of the earth’s gravity，the astronaut is ________ by the problem of weightlessness.
A．affected B．effected
C．related D．offered
3．—If you like I can do some shopping for you
—That’s a very kind________.
A．offer B．service
C．point D．suggestion
4．My chest________ when I make a deep breath，doctor.
A．harms B．wounds
C．hurts D．injures
5．He suggested________ a meeting and it suggested that he________ in our plan.
A．to hold；was interested B．holding；was interested
C．holding；should be interested D．should hold；be interested
6．—Do you know anyone in Paris
—No，I’ll make friends once________.
A．I’m settled B．I have settled
C．I’ll be settled D．I’m settling
7．If you stand here，you’ll get a better________ of the river.
A．sight B．view
C．scene D．scenery
8．________，American firms remain the most productive in the world.
A．In average B．With average
C．On average D．By average
9．Numerous people in the world were________ by the________ courage of the disabled Chinese athlete Jin Jing when she physically protected the torch.
A．touched；touched B．touching；touching
C．touched；touching D．touching；touched
10．—Shall we go to the art exhibition right away
—________.
A．It’s your opinion B．I don’t mind
C．It’s all up to you D．That’s your decision
11．He is famous both________ a novelist and a poet but he is more famous________ his novels.
A．for；as B．with；for
C．as；for D．like；as
12．Look，dark clouds are gathering.It is________ to rain soon.
A．probably B．possibly
C．likely D．perhaps
13．It is often said that the joy of travelling is________ in arriving at your destination________ in the journey itself.
A．/；but B．/；or
C．not；or D．not；but
14．________ worries me is the way he keeps changing his mind.
A．This B．That
C．What D．It
15．Eliza remembers everything exactly as if it________yesterday.
A．was happening B．happens
C．has happened D．had happened
Ⅱ.完形填空
One of my father’s favorite sayings as I was growing up was “Try it！” I couldn’t say I didn’t like __16__，whatever it might be，__17__ I tried it.Over the years I’ve come to __18__ how much of my success I owe to my __19__ of those words as one of my values.My __20__ job was just one I decided to try for a couple of years until I __21__ what I wanted to do as a career(职业)．__22__ I believed I would work for a few years，get married，stay home and raise a family，so I didn’t think the job I took __23__ that much.I couldn’t have been more __24__.I mastered the skills of that beginning level position and I was given the opportunity(机会) to __25__ through the company into different __26__.I accepted each new opportunity with the __27__，“Well，I’ll try it；if I don’t like it I can always go back to my __28__ position.”But I was with the same company for the past 28 years，and I’ve __29__ every career change I’ve made.I’ve discovered I __30__ a large number of different talents(才能) and skills that I never would have thought were within me had it not been for my being __31__ trying new opportunities.I’ve also discovered that if I __32__ what I’m doing and work hard at achieving my __33__，I will succeed.That’s why I’m so __34__ to be a part of .I think __35__ has come and I am determined to make it a success.
16．A. everything B．something
C．everybody D．somebody
17．A. until after B．ever since
C．so that D．long before
18．A. consider B．argue
C．include D．realize
19．A. suggestion B．explanation
C．acceptance D．discussion
20．A. hard B．best
C. extra D．first
21．A. determined B．examined
C．experienced D．introduced
22．A. Actually B．Gradually
C．Finally D．Usually
23．A. helped B．required
C．expressed D．mattered
24．A. careful B．mistaken
C. interested D．prepared
25．A. look up B．take up
C．move up D．put up
26．A. situations B．choices
C．directions D．positions
27．A. thought B．reply
C．action D．advice
28．A. easier B．newer
C．earlier D．higher
29．A. permitted B．counted
C．organized D．enjoyed
30．A. show B．possess
C．need D．gather
31．A. lucky for B．slow at
C．open to D．afraid of
32．A.think of B．give away
C．believe in D．turn into
33．A. business B．goal
C．fortune D．growth
34．A. excited B．curious
C．surprised D．helpful
35．A. dream B．time
C．power D．honor
Ⅲ.阅读理解
Recently，scientists attending a meeting in Chicago presented new studies showing how food and its production affect global warming.They offered some suggestions for how to eat in a more environmentally friendly way.
For many years，scientists have warned us that our planet is getting warmer.If current trends continue，animals may start to die off and life could get very difficult for everyone.The temperature is rising because humans have been releasing massive amounts of greenhouse gases into the atmosphere，which surround the planet and keep heat from escaping.One of these gases is carbon dioxide.
Most carbon dioxide we produce comes from the process of making and eating food，the scientists reported in Chicago.The production of meat contributes to a lot of carbon dioxide.And much of meat’s contribution comes from beef，which is responsible for releasing even more greenhouse gases into the atmosphere.
The process of making a hamburger，for example，requires a lot of energy.A cow has to be fed and raised，and cow’s wastes are a major source of greenhouse gases.After the cow is killed，the meat has to be processed and shipped to a consumer，which takes fuel.And most of the cow won’t even be used for meat people eat.
By the time a hamburger finally lands on a dinner plate，it has taken a heavy toll on the environment.It is believed that the process of making a half pound all beef burger adds about 19 times the weight of hamburgers in carbon dioxide.
The message is clear：We can greatly reduce the production of greenhouse gases by eating less beef.Other kinds of meat like pork and chicken do less harm to the environment—at least in terms of the amount of greenhouse gases released.Nathan Pelletier，a scientist at Dalhousie University in Canada，reported that if everyone in industrial countries ate chicken instead of beef，we would cut the Earth’s greenhouse gases by more than half.
All kinds of meat，the scientists reported，are harder on the planet than vegetables.To grow and eat a pound of potatoes，for example，sends less than one quarter pound of carbon dioxide into the air.So shifting our diet to less meat and more vegetables may do the world some good.
36．The text mainly tells us ________.
A．what we eat can affect the whole planet
B．the way we live affects the environment
C．how we can save energy on the Earth
D．how we can produce environment friendly food
37．What is likely to happen if the climate is getting warmer according to the passage
A．Sea level will continue to rise sharply.
B．Human beings won’t have enough food.
C．It would be very hard for man to survive.
D．All the animals and plants will disappear.
38．Why does the author mention the process of making a hamburger
A．To show meat is usually part of a hamburger.
B．To illustrate that our food contributes to greenhouse gases.
C．To prove making a hamburger is a complex process.
D．To suggest a lot of energy is needed to make hamburgers.
39．The author believes one effective way to fight global warming is ________.
A．we should eat no pork and no chicken
B．we should eat more chicken than beef
C．we should eat not meat but vegetables
D．we should eat less meat and more vegetables
40．Which of the following statements would Nathan Pelletier agree to
A．Eating pork and chicken is more environmentally friendly.
B．Meat consumption is the main cause of greenhouse gases.
C．People in industrial countries consume more beef than fish.
D．Eating more beef is a more efficient way to save more energy.
答案
1.D 2.A 3.A 4.C 5.B 6.B 7.B 8.C 9.C 10.C 11.C 12.C 13.D 14.C 15.D 16.B 17.A 18.D 19.C 20.D 21.A 22.A 23.D 24.B 25.C 26.D 27.A 28.C 29.D 30.B 31.C 32.C 33.B 34.A 35.B 36.A 37.C 38.B 39.D 40.A