Some hard-working students always keep a torch in their dormitories _____ there is a power failure.

A. if B. unless C. so that D. in case

D

【解析】A. if 如果B. unless 除非C. so that因此D. in case萬(wàn)一。根據(jù)句意：一些學(xué)習(xí)刻苦的學(xué)生通常在宿舍備一個(gè)手電筒以防停電。選D。

考點(diǎn)：考查狀語(yǔ)從句。

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年四川綿陽(yáng)市高二下入學(xué)考試英語(yǔ)試卷（解析版） 題型：閱讀理解

When I was 13, my bedroom walls were covered with posters of the Monkees and Beatles. I wrote fan letters and daydreamed about meeting the objects of my affections. I begged my parents to attend every rock concert and watch every TV show featuring my favorite celebrities (名人) ; my friends and I discussed for hours all the things we would say and do when we met our favorite movie stars and pop singers. I drove my mother crazy! But after a few years, my obsession (迷戀) stars faded as I matured and gained the confidence to socialize with "real" boys.

In the 35 years since I was a teenager, celebrity worship (崇拜) has increased among teens due to the explosion of television celebrity gossip shows, and instant access to celebrity news on the Internet. It's no wonder that many teens are obsessed with stars when news programs often are filled with entertainment stories and the lives of celebrities.

Celebrity worship syndrome (綜合征) is now considered a personality disorder. While it is normal for teenagers to follow the lives of their favorite stars, parents should try to monitor everything their child finds interesting. Parents should take action if they suspect a teen is too obsessed with celebrities and showing little interest in school or withdrawing from the family. When teens talk a lot about celebrities and view them as just means of entertainment, this is considered normal celebrity worship. However, when a teenager is obsessed with a star and often expresses a desire to have a close personal relationship with a celebrity or feels they have a special connection to a star, this may be the time for concern.

Recent studies have shown that teens who develop an unhealthy obsession with celebrities often suffer from low self confidence and depression. Teens who are overly obsessed with stars often have damaged relationships with their parents.

1.We learn from the second paragraph that ____.

A.teens today are not so obsessed with celebrities

B.the author is surprised at celebrity worship

C.the media greatly contributes to celebrity worship today

D.celebrities expose their lives too much

2.Parents should become concerned when their children ____.

A.talk a lot about celebrities with others

B.put up celebrity posters in their bedrooms

C.ask to go to their favorite star's concert

D.desire a close personal relationship with their favorite star

3.The last paragraph implies that ____.

A.parents should not care too much about a child's celebrity worship

B.children can normally get out of celebrity worship when they are older

C.children with celebrity worship usually have high opinion of themselves

D.celebrity worship syndrome can be a serious problem if left overlooked

4.What is most likely to be talked about in the paragraph following the passage?

A.The harm of celebrity worship syndrome.

B. What to do with children's celebrity worship syndrome.

C. More signs of celebrity worship syndrome.

D. Who will suffer most from celebrity worship syndrome.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年四川省遂寧市高三第二次診斷考試英語(yǔ)試卷（解析版） 題型：閱讀理解

New research shows that the healthy brain may hold memories which we don’t even remember. In The Journal of Neuroscience, experts report that the brain might hold more memories than people realize, but that restoring those memories can be tricky.

Memory Check

First, participants saw a list of 120 real words mixed with 80 nonsense words. Next, they saw another word list and tried to remember which words had been on the first list. Meanwhile, their brains were scanned with functional magnetic resonance(核磁共振) imaging.

While participants reviewed the second word list, their brain scans showed more activity in a certain brain area -- the posterior（后部的） median temporal lobe(腦葉) -- when they saw words that had been on the first word list.

But participants didn’t always remember that they’d seen those words before. Sometimes, they goofed and said they hadn’t seen those words before. In other words, the posterior median temporal lobe was more sensitive to memory than participants’ consciousness, the researchers note.

“Album”of Memories

Another part of the median temporal lobe also attracted the scientists’ attention. The anterior（前面的）median temporal lobe showed more activity when participants thought they were seeing a new word, the study shows.

So, why did participants sometimes mess up their memory recall? It might be that two parts of their brain -- the posterior and anterior median temporal lobes -- might be dueling(決斗) for the upper hand in deciding what actually happened in the past, the study notes.

In other words, memories might have a photo album in the brain, but sometimes we forget what’s on all of the photo album’s pages.

1.A person sometimes has difficulty recalling because .

A. he is unconscious when he gets his memories

B. he forgets what is on the pages of the photo album

C. there are two parts in his brain dueling for the upper advantage

D. the anterior median temporal lobe is more active than the posterior

2.According to the passage the researchers are .

A. studying how a person remembers things

B. studying a magazine The Journal of Neuroscience

C. examining posterior and anterior median temporal lobes

D. doing experiments to find out what disturbs a person’s memory

3.What did the experts discover when the participants saw the words on the first word list appear on the second word list?

A. The instrument worked faster.

B. The participants were more conscious.

C. The posterior median temporal lobe was more active.

D. The anterior median temporal lobe was more active.

4. The underlined wordgoofedin the fourth paragraph means .

A. made a mess of B. made an answer for

C. made out of D. made the best of

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年湖南省懷化市高三第一次模擬考試英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

You are hardworking and surely most of you _____ a college admission notice by the end of September this year.

A. will receive B. will be receiving

C. will be received D. will have received

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年湖南省懷化市高三第一次模擬考試英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Tom was sorry to learn that his grandfather _____ for half an hour when he got to the hospital.

A. had died B. had been dead

C. died D. has been dead

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年山西忻州市高三上學(xué)期期末英語(yǔ)試卷（解析版） 題型：完形填空

For a long time I saw happiness as a huge banner (旗幟) across the finish line of a long race. I felt that only when I____certain things could I finally be happy in my life. Most of the time I felt like a tortoise believing that being slow and___would win the race. At other times I would____like a rabbit trying different side roads at a dangerous ____hoping to reach that banner a little faster.____，I began to see that no matter how long I raced towards it，the banner was never any____. I finally decided to____and take a break. It was then that I saw my____sitting beside me.

It had been with me as I____hard to support my family, as I played with my children and heard their____and even when I was ____with my wife at my side looking after me. It had been with me as I raced towards that stupid banner. I just didn’t have the____to see it.

There is an old Chinese proverb that says，“Tension is who you think you should be. ____is who you are.” Perhaps we all should stop our race towards the____life we think we should have and ____the life we have now. Happiness will never be found under some banner far away. It will be found____your own heart，soul and mind. It will be found when you___that others love you just as you do.

Don’t be a tortoise or a rabbit when it comes to your happiness. Be a playful puppy and carry your stick of____with you everywhere you go. ____yourself out of the race and realize that when it comes to love and happiness, you are____there.

1.A. forgot B. missed C. overcame D. accomplished

2.A. safe B. steady C. calm D. quiet

3.A. act B. run C. jump D. walk

4.A. place B. height C. speed D. time

5.A. Generally B. Gradually C. Fortunately D. Firstly

6.A. clearer B. lower C. closer D. smaller

7.A. settle in B. start off C. stop by D. sit down

8.A. happiness B. goal C. success D. friendship

9.A. studied B. fought C. exercised D. worked

10.A. laughter B. complaints C. stories D. breathing

11.A. lonely B. tired C. sick D. hungry

12.A. courage B. chance C. wisdom D. strength

13.A. Stress B. Relaxation C. Failure D. Pain

14.A. real B. perfect C. common D. ordinary

15.A. enjoy B. change C. improve D. create

16.A. from B. on C. over D. in

17.A. realize B. believe C. hope D. admit

18.A. sorrow B. responsibility C. fortune D. joy

19.A. Carry B. Make C. Push D. Take

20.A. never B. still C. already D. ever

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年浙江省六校高三3月聯(lián)考英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Many young ladies in the street have __________ their summer dresses in late spring．

A. put out B. brought out C. stood out D. picked out

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年福建泉州市高三3月教學(xué)質(zhì)量檢查英語(yǔ)試卷（解析版） 題型：其他題

閱讀下面短文，根據(jù)以下提示：1）漢語(yǔ)提示；2）首字母提示；3）語(yǔ)境提示，在每個(gè)空格內(nèi)填入一個(gè)適當(dāng)?shù)挠⒄Z(yǔ)單詞，并將該詞完整地寫在右邊相對(duì)應(yīng)的橫線上。所填單詞要求意義準(zhǔn)確、拼寫正確。

Thirty years ago, communication wasn’t so convenient. And my grandparents wrote letters to their friends and 1. __________（親戚）. They wrote to each2. __________ because Grandpa worked in the city and Grandma lived in the country. It 3.__________（花費(fèi)）about one week to deliver a letter. When Grandma asked questions in her letter, she had to wait more than two weeks to get the answers! If they had anything 4.u______ and to deliver immediately, they had to send telegrams.

The telephone became popular in the early 1990s. But not until 1998 did my dad’s family 5. h_________ a telephone. Although it was much 6. f than writing letters, it was still inconvenient. Once Dad arrived home late because he helped a granny 7. __________ his way. My grandparents were very worried because they couldn’t get in 8. with him. Then my dad bought his first mobile phone in 2002.

My favorite communication tool is the mobile phone. I have used it since my sixteenth birthday. My parents and friends can find me 9.w I am. It’s very convenient, but at the same time it is easy to get bothered, especially when I want to stay alone. Sometimes I have headaches after 10.______（談話）on the mobile phone for a long time.

查看答案和解析>>

同步練習(xí)冊(cè)答案