16．Schools in the cities are well equipped        those in the countryside are poor．（　�。�
A．ifB．whileC．soD．as

分析 城市里的學校都配備地很好，然而鄉(xiāng)村的學校卻配備地很差．

解答 答案B．
if從屬連詞，意思是"如果"，引導條件狀語從句；while作并列連詞時，意思為"而，然而"，表對比；so是表示因果關系的并列連詞，意思是"因此"；as從屬連詞，作"因為"時，引導原因狀語從句，作"隨著"時，引導時間狀語從句．根據(jù)上下文語境"Schools in the cities are well equipped"和"those in the countryside are poor"可知是城市里的學校的裝備情況和鄉(xiāng)村的學校裝備情況的比較，故答案選B．

點評 本題考查從屬連詞的用法．連詞的用法辨析，要注意分析主從句之間的關系，再確定相應的連詞，同時注意不同的連詞的語義及用法區(qū)別．While作并列連詞用，意思為"而，然而"，表對比．而but表轉(zhuǎn)折．
注意用心比較體會while與but的句中用意．
1．Some people waste food while others haven't enough．有些人很費糧食，然而有些人卻吃不飽．  
2．The son was having a good meal at home，while the parents were working in the fields．兒子在家吃好飯而父母卻在田里辛勤勞作．  
3．I ought to have helped her，but I never could．我本該幫她但沒能．  
4．Honey is sweet，but the bee stings．蜂蜜很甜，但蜜蜂有刺蜇人．

練習冊系列答案
相關習題

科目：高中英語 來源： 題型：閱讀理解

4．Group exercise is one of the most effective ways to improve physical fitness and sustain a healthy lifestyle．Group exercise is challenging，yet fun and empowering!Of course everyone knows that exercise is good for the body．However，studies have shown that when exercise is performed in groups，it's not only great for improving physical health but for psychological health．It's an opportunity to be social，release endorphins（內(nèi)啡肽），and improve your strength．Additionally，group exercise creates a community feel and the shared common goal motivates participants to work hard．The instrumental support of taking on a fitness journey with others proves more effective than going to the gym alone．
Another beneficial aspect of group exercise is the informational support participants receive from the instructor．Many people fear the gym because they feel lost and don't want to embarrass themselves．If you feel you can relate，then group training is an even better option for you．It's a great opportunity to learn more about fitness through the clear instruction and supervision （監(jiān)管） of a fitness instructor．If you're tired of wandering around the gym wasting time and becoming bored，you can attend an upbeat group fitness class that'll keep your workout on track．Don't letfitness frighten you!
If you're serious about wanting to live a healthy lifestyle，it's extremely important to surround yourself with people who'll provide you with the proper emotional support．I wouldn't scold anyone for deciding to party on weekends and in turn I wouldn't expect anyone to give offence to me for focusing on my health．Surround yourself with people who uplift，encourage and understand you!Make fitness even more fun by trying something new or any group fitness class，with a friend．Plan to go for a jog together．Then try a fun healthy restaurant or fresh juice bar!Fitness can be both fun and social!
Surrounding yourself with people who'll provide you with respect support can be very beneficial while working towards reaching health and fitness goals．First，decide to do it for yourself and work towards staying positive．Then make sure the people you surround yourself with are supportive．Don't let negativity ruin your motivation．

72．The first paragraph focuses onC．
A．the greatest challenge of group exercise
B．the most effective way to improve physical fitness
C．the contribution of group exercise to psychological health
D．the shared common goal in performing exercise in groups
73．The underlined word"upbeat"in the second paragraph probably means"A"．
A．cheerful
B．a(chǎn)verage
C．serious
D．temporary
74．When it comes to emotional support，the author thinks it necessaryD．
A．to sustain a colorful lifestyle
B．to party on weekends with positive people
C．to try a fun healthy restaurant regularly
D．to surround yourself with supportive people
75．What would be the best title for the passage？B．
A．Seeking Support
B．Supporting Health
C．Improving Your Strength
D．Building Up Fitness．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

5．I'm sorry you've been waiting so long，but it'll still be sometime_____Tom gets back．（　�。�
A．whenB．beforeC．afterD．since

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

4．The technology is great．Without it we wouldn't have been able to put a man on the moon，explore the ocean's depths or eat microwave sausages．Computers have revolutionized our lives and they have the power to educate and pass on knowledge．But sometimes this power can create more problems than it solves．
　　Every doctor has had to try their best to calm down patients who've come into their surgery waving an Internet print-out，convinced that they have some rare incurable disease，say，throat cancer．The truth is usually far more ordinary，though：they don't have throat cancer，and it's just that their throats are swollen．Being a graduate of the Internet"school"of medicine does not guarantee accurate self-health-checks．
　　One day Mrs．Almond came to my hospital after feeling faint at work．While I took her blood sample and tried to find out what was wrong，she said calmly，"I know what's wrong； I've got throat cancer．I know there's nothing you doctors can do about it and I've just got to wait until the day comes．"
　　As a matter of routine I ordered a chest X-ray．I looked at it and the blood results an hour later．Something wasn't right．"Did your local doctor do an X-ray？"I asked．"Oh，I haven't been to the doctor for years，"she replied．"I read about it on a website and the symptoms fitted，so I knew that's what I had．"
　　However，some of her symptoms，like the severe cough and weight loss，didn't fit with it-but she'd just ignored this．
　　I looked at the X-ray again，and more tests confirmed it wasn't the cancer but tuberculosis （肺結(jié)核）-something that most certainly did need treating，and could be deadly．She was lucky we caught it when we did．
　　Mrs．Almond went pale when I explained she would have to be on treatment for the next six months to ensure that she was fully recovered．It was certainly a lesson for her．"I'm so embarrassed，"she said，shaking her head，as I explained that all the people she had come into close contact with would have to be found out and tested．She listed up to about 20，and then I went to my office to type up my notes．Unexpectedly，the computer was not working，so I had to wait until someone from the IT department came to fix it．Typical．Maybe I should have a microwave sausage while I waited？

63．Mrs．Almond talked about her illness calmly becauseA
A．she thought she knew it well                    　　      
B．she had purchased medicine online
C．she graduated from a medical school         　　      
D．she had been treated by local doctors
64．It was lucky for Mrs．AlmondD
A．to have contacted many friends                　         
B．to have recovered in a short time
C．to have her assumption confirmed                          
D．to have her disease identified in time
65．Mrs．Almond said"I'm so embarrassed"（Para.7）becauseB
A．she had distrusted her close friends                        
B．she had caused unnecessary trouble
C．she had to refuse the doctor's advice                      
D．she had to tell the truth to the doctor
66．By mentioning the breakdown of the computer，the author probably wants to proveC
A．it's a must to take a break at work　　                  
B．it's vital to believe in IT professionals
C．it's unwise to simply rely on technology　　          
D．it's a danger to work long hours on computers．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

11．Eating too much fatty food，exercising too little and smoking can raise your future risk of heart disease．But there is another factor that can cause your heart problems more immediately：the air you breathe．
Previous studies have linked high exposure （暴露）to environmental pollution to an increased risk of heart problem，but two analyses now show that poor air quality can lead to heart attack or stroke （中風）within as little as a few hours after exposure．In one review of the research，scientists found that people exposed to high levels of pollutants （污染物）were up to 5% more likely to suffer a heart attack within days of exposure than those with lower exposure．A separate study of stroke patients showed that even air that the U．S．Environmental Protection Agency （EPA） considers to be of"moderate"（良好）quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12to 14hours of exposure．
The authors of both studies stress that these risks are relatively small for healthy people and certainly modest compared with other risk factors such as smoking and high blood pressure．However，it is important to be aware of these dangers because everyone is exposed to air pollution regardless of lifestyle choices．So stricter regulation by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health．

53．The text mainly discusses the relationship betweenA．
A．heart problems and air quality  
B．heart problems and exercising
C．heart problems and smoking  
D．heart problems and fatty food
54．The underlined word"modest"in Paragraph 3most probably meansC．
A．relatively high   
B．extremely low
C．relatively low   
D．extremely high
55．What can we learn from the text？D
A．Eating fatty food has immediate effects on your heart．
B．The EPA conducted many studies on air quality．
C．Moderate air quality is more harmful than smoking，
D．Stricter regulations on pollutants should be made．
56．The author's purpose of writing the text is most likely toA．
A．inform  
B．persuade  
C．describe   
D．entertain．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

1．_________could be judged from her eyes that she was terribly sorry for what she _____．（　�。�
A．As； had doneB．That； didC．As； didD．It； had done

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

8．To find better jobs，many young people have left their homes，_____________ their children and parents behind．（　�。�
A．1eavingB．to leaveC．having leftD．to have left

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

5．One day，I explored the town's abandoned round grain barn（谷倉）when I was at the age of 11．I found a chained sliding door that was wide enough for me to pass through．
Inside，there was a heavy smell of dead mice in the dark．After my eyes adjusted，I noticed a shaft （升降機井） that rose all the way to the top of the barn．On one side was a one-man elevator with a long rope and roller．
I stepped onto the platform and gave the rope a drag and the elevator began sliding up the shaft，but stopped halfway．After a brief panic attack，I noticed holes in the wall at regular intervals，forming a ladder．For reasons known only to an 11-year-old，I decided it would be better to go up than down．So，with shaking hands，I began climbing the wall．
After what seemed like forever，I reached the top of the shaft．I stood up，dusted myself off and found absolutely nothing of interest．It was just an empty room with a ladder leading up to the roof．I climbed all the way up here for this？Then I noticed a fire extinguisher（滅火器），which I'd always wanted to shoot off．So this was the chance of a lifetime．I tried it，and，much to my surprise，the thing worked!It shot out a thick cloud of powder that instantly filled the room．I couldn't breathe．I was going to choke to death，and they'd probably never even find my body．
Luckily，I remembered the ladder to the roof．I climbed up，popped the straw roof and saw a bright blue sky．
I suddenly realized the dust and powder pouring out of the top could draw attention．So when the dust had settled，I climbed down and slipped out of the chained door．I'm not sure if I was more excited about being alive or about not being caught，but I ran all the way back home．
56．When the author got inside the barn，heC．
A．opened the chained sliding door             
B．noticed a man on the elevator
C．found a shaft leading to the top            
D．saw many dead mice in the dark
57．Which of the following is the right order of the author's adventure？B
a．The elevator stopped halfway．b．He entered the round grain barn．
c．He climbed to the top of the shaft．d．He found a fire extinguisher and shot it off．
A．a(chǎn)-c-b-d          B．b-a-c-d              C．b-c-a-d              D．c-a-d-b
58．After getting out of the chained door，the author might feelD
A．surprised            B．disappointed         C．inspired             D．relieved
59．From the passage，we can learn that the author was probably a boy full ofAA．curiosity            B．imagination         C．passions        D．dreams．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

6．-Where are you working now？
-At a university．But I ______ in a high school for five years．（　�。�
A．taughtB．was teaching
C．had taughtD．had been teaching

查看答案和解析>>

同步練習冊答案