年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語 來源: 題型:閱讀理解
A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. All computer viruses are manmade. Here are some virus prevention tips.
Do not open any files attached to an e-mail from an unknown, suspicious or untrustworthy source.
Do not open any files attached to an e-mail unless you know what it is, even if it appears to come from a dear friend or someone you know. Some viruses can replicate(復(fù)制) themselves and spread through e-mail. Better be safe that sorry and confirm that they really sent it .
Do not open any files attached to an e-mail if the subject line is questionable or unexpected. If the need to do so is there always save the file to your hard drive before doing so.
Delete chain e-mails and junk e-mail. Do not forward(轉(zhuǎn)寄) or reply to any of them. These types of e-mail are considered spam(垃圾郵件), which contains lots of annoying advertisements and useless information.
Do not download any files from strangers.
Be careful when downloading files from the Internet. Ensure that the source is a legitimate(合法的)and reputable one. Verify(證實(shí))that an anti-virus program checks the files on the download site. If you are uncertain, don’t download the file at all or download the file to a floppy(軟盤)and test it with your own anti-virus software.
Update your anti-virus software regularly. Over 500 viruses are discovered each month, so you’ll want to be protected. These updates should be at least the products virus signature files. You may also need to update the product’s scanning engine as well.
Back up(備份) your files on a regular basis. If a virus destroys your files, at least you can replace them with your backup copy. You should store your backup copy in a separate location from your work files, one that is preferably not on your computer.
This passage mainly tells us .
A. What a computer virus is
B. how to use e-mail safely
C. how to use computers safely
D. how to prevent computer viruses
Which of the following statements about computer virus is TRUE?
A. A computer virus is a kind of worm
B. Not all computer viruses are manmade
C. Computer viruses run according to our wishes
D. A computer virus is a program or piece of code.
When we use e-mail, we should .
A. open all the files we receive
B. open any file even if we don’t know what it is
C. not open any files if the subject line is questionable
D. forward or reply to junk e-mail.
Which of the following statements is NOT true?
A. We’d better not down load any files from strangers.
B. We’d better download files from a legitimate and reputable source.
C. We should update our anti-virus software regularly.
D. We should store our backup copy in the same location as our work files.
查看答案和解析>>
科目:高中英語 來源:江蘇省清江中學(xué)09-10學(xué)年度高二第一學(xué)期期末考試 題型:完型填空
第二節(jié):完形填空(共20小題;每小題1分,滿分20分)
請(qǐng)認(rèn)真閱讀下面短文,從短文后各題所給的A、B、C、D四個(gè)選項(xiàng)中,選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。
Cyber Step-Mother
I’ve often felt “step-parent” is a label (標(biāo)簽 )we attach to whoever marries into families where children already exist. At 36 that’s how I feel about 37 a step-mother to my husband’s four children.
Over the years, we all learned to 38 our new family arrangement. We enjoyed vacations together, ate 39 meals, and so on. 40 , I continued to feel somewhat like a(n) 41 . There was a boundary line that could not be 42 .
When the children moved to a town five hours 43 , my husband was depressed. In order to 44 regular communication with the kids, we send e-mails. However, if a computer message came 45 to “Dad”, I’d feel forgotten and 46 . If my name appeared along with his, it would make me feel like I was part of their family unit 47 .
Late one evening, as I was checking my e-mail, an “instant message” appeared on the 48 . It was Margo, who was also sitting in front of her computer five hours away. We sent several messages back and forth, 49 the latest news. When we would “chat” like that, she wouldn’t 50 know if it was me or her dad. That night, she didn’t ask and I didn’t identify myself either. At about 11, I commented that I should go to sleep. Her return message 51 , “Okay, talk to you later! Love you!”
As I read this message, a wave of 52 ran through me and I realized that she 53 she was talking with her father. Feeling 54 for not identifying myself, yet not wanting to embarrass her, I simply responded, “Love you too! Good night!”
I felt again the sharp (劇烈的) ache of emptiness (空虛) and otherness. Then, as I was 55 to leave, Margo’s final message appeared, reading “Tell Dad good night for me too.” With tears filled eyes, I turned the machine off.
36. A. most B. least C. present D. last
37. A. to be B. being C. is D. was
38. A. adjust B. look forward to C. expect D. adapt to
39. A. family B. school C. meat D. fish
40. A. But B. Though C. However D. So
41. A. outsider B. member C. stranger D. foreigner
42. A. across B. cross C. crossing D. crossed
43. A. far B. away C. far from D. away from
44. A. maintain B. entertain C. contain D. obtain
45. A. addressing B. signing C. signed D. addressed
46. A. neglected B. devoted C. ignore D. concerned
47. A. in short B. after all C. above all D. as a result
48. A. programme B. window C. screen D. keyboard
49. A. sending B. exchanging C. discussing D. commenting
50. A. unexpectedly B. carefully C. fortunately D. necessarily
51. A. read B. reads C. reading D. wrote
52. A. sickness B. anger C. nervousness D. sadness
53. A. must think B. might have thought C. must have thought D. might think
54. A. responsible B. stupid C. guilty D. disappointed
55. A. about B. due C. prepare D. willing
查看答案和解析>>
科目:高中英語 來源:2011-2012學(xué)年甘肅省蘭州市第五十五中學(xué)高一第一次月考英語卷 題型:填空題
增加:在缺詞處加一個(gè)漏詞符號(hào)(∧),并在此符號(hào)下面寫出該加的詞。
刪除:把多余的詞用斜線(\)劃掉。
修改:在錯(cuò)的詞下劃一橫線,并在該詞下面寫出修改后的詞。
注意:
1.每處錯(cuò)誤及其修改均僅限一詞;2.只允許修改10處,多者(從第11處起)不計(jì)分。
editor,
I’m writing to tell you something about how we students use the Internet.As we all know, the Internet is playing a important part in our daily life.We often read news at home and abroad and learning foreign languages by ourselves on the Internet.Sometimes we sent e-mails to our families as well as our friends.Beside, we listen music, enjoy films and play computer games on it.We can even do shopping without leaving our homes.
However, it has its disadvantages.We waste too much time playing the electronic games, that has a bad effect on our studies.What’s worse, the bad information on the Internet do great harm to them.I hope we can make the use of the Internet proper for our studies.
Yours truly
Zhang Hua
查看答案和解析>>
科目:高中英語 來源:2012-2013學(xué)年河南省鄭州市第四中學(xué)高二下學(xué)期期中考試英語試卷(帶解析) 題型:填空題
短文改錯(cuò)
I happen to meet some American tourists at gate of the Summer Palace last week. I
greeted them with English and then we began to chat. I got to know they were college
student traveling in China. Most of us were fond of Chinese medicine. They were busy
taking pictures and were surprising at the changes that had taken place in the past few years. After that, we went boat and had a good time. We were exchanged our e-mail
addresses such that we could write to each other in the future. They thanked me again
and again. I was gladly to have a chance to practice my oral English.
查看答案和解析>>
科目:高中英語 來源:2011年山東省高二上9月質(zhì)量檢測(cè)(英語) 題型:單詞拼寫
1) We must ___________ (限制) our spending.
2) I was very i___________ by one young man at my lectures; he’s a tall man with brown hair.
3) Jesus was the founder of the Christian ____________. (宗教)
4) The trees provide s__________ for the animals in the summer.
5) I don’t know much about the __________ (內(nèi)容) of the letter.
6) If you b_________ from something, it helps you or improves your life.
7) As a child I was ____________(包圍,環(huán)繞) by love and kindness.
8) The chair was i___________ for the kid, but a young man took it away.
9)We’ll e__________ the business to make it bigger and includes more people, goods, or activities.
10) For further information, please _________(參考,參看) to Chapter Ten.
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com