精英家教網 > 高中英語 > 題目詳情

How to Protect Yourself from Hackers Online

An increase in cyber-attacks (網絡攻擊) makes the Internet seem like a scary place these days. How can individuals protect or make it more difficult for hackers to access their information? Here are several tips that can help you protect against cyber-attacks:

1.

Hard passwords include upper and lower case letters, numbers and special characters. They should be at least eight characters in length. They should also not spell out words easy for hackers to find, like your pet's name or the name of a family member.

Change your password regularly

A very common mistake made by users is to create one hard password, but then never change it. Remembering a long list of complicated passwords can be difficult. But no password is unbreakable. Hackers are better able to hack multiple accounts if those accounts all have the same password. A password management service, like Dashlane or PasswordBox, can help you keep track of hard passwords. 2.

Clear your browser (瀏覽器) history

This goes for all the devices you use in a day – your home computer, your work computer, or your friend's iPad. Internet browsers like Firefox or Chrome keep track of where you've been and what you've done online. They keep records of every site you visited. 3. It is very easy for anyone who sees that information to steal a detailed record of your online activities.

Do not use free Wi-Fi

4. Often, a user does not need a password to connect to these wireless networks. These services might be useful, but they're also an easy way for hackers to access everything on your device.

Use anti-virus protection

There are many anti-virus services available for users. 5. Some anti-virus services are even free. They are a great way to have a professional help keeping users one step ahead of hackers.

A. Be careful while using thumb drive.

B. These services permit users to easily store and secure their passwords.

C. Make your password harder to hack.

D. They can offer many different types of computer protection.

E. An increasing number of public places now offer free wireless access to the Internet.

F. Information about what you sent from or saved on your computer can be kept for days or weeks.

G. Unless you really need it, it is best not to use it.

練習冊系列答案
相關習題

科目:高中英語 來源: 題型:完形填空

9.I met Mrs.Neidl in the ninth grade on a stage-design team for a play and she was one of the directors.Almost instantly I loved her.She had an Unpleasant voice and a direct way of speaking,(36)yet she was encouraging and inspiring.For some reason,she was impressed with my work and me.
   Mrs.Neidl would ask me for my (37)opinion.She wanted to know how I thought we should (38)handle things.At first I had no idea how to answer because I knew(39)nothing  about stage design!But I slowly began to respond to her(40)questions.It was cause and effect:She believed I had opinions,so I began to (41)form  them.She trusted me to complete things,so I completed them perfectly.She loved how(42)reliable I was,so I began to show up to paint more and more.She believed in me,so I began to believe in myself.
   Mrs.Neidl's (43)motto  that year was,"Try it.We can always paint over it (44)later!"I began to take(45)risks.I had been so afraid of failing but suddenly there was no failing--only things to be(46)improved  upon.I learned to dip my brush into the paint and (47)confidently create something.
   The shy,quiet freshman achieved success that year.I was(48)recognized  in the program as"Student Art Assistant"because of the time and effort I'd put in.It was that yea r that I(49)realized  I wanted to spend the rest of my life doing stage design.
   Being on that stage-design team(50)with  Mrs.Neidl changed me completely.Not only was I stronger and more competent than I had thought,but I also (51)discovered a strong interest and a world I hadn't known existed.She taught me not to (52)care what people think I should do:She taught me to take chances and not be (53)afraid.Mrs.Neidl was my comforter when I was upset.Her (54)trust  in me has inspired me to do things that I never imagined(55)possible.

36.A.andB.yetC.soD.for
37.A.opinionB.impressionC.informationD.intention
38.A.makeB.keepC.handleD.change
39.A.anythingB.somethingC.everythingD.nothing
40.A.questionsB.commentsC.explanationsD.remarks
41.A.holdB.followC.evaluateD.form
42.A.happyB.livelyC.reliableD.punctual
43.A.messageB.mottoC.sayingD.suggestion
44.A.againB.moreC.insteadD.later
45.A.stepsB.controlC.chargeD.risks
46.A.improvedB.actedC.lookedD.reflected
47.A.easilyB.carefullyC.confidentlyD.proudly
48.A.introducedB.recognizedC.identifiedD.considered
49.A.confirmedB.decidedC.realizedD.acknowledged
50.A.withB.belowC.ofD.by
51.A.developedB.discoveredC.tookD.fostered
52.A.acceptB.careC.judgeD.wonder
53.A.boredB.lazyC.sadD.afraid
54.A.trustB.patienceC.curiosityDo interest
55.A.accessibleB.enjoyableC.possibleD.favorable.

查看答案和解析>>

科目:高中英語 來源: 題型:完形填空

2.Cultural difference occur wherever you go.When visiting another country you should be
aware of those differences and (28)respect  them.Here are some  (29)tips   on how to fit in.
Every traveler to a foreign country feels (30)awkward    at some point.What you do can make locals laugh.Your best defense is a sense of   (31)humor.If you can laugh off eating with the wrong hand in India,locals will warm to you as"that crazy foreigner."
Wearing proper clothes is important too.(32)for   locals will judge you by what you wear.In some Middle Eastern countries,exposing your flesh is (33)forbidden,especially if you are a woman.So leave your torn jeans at home.
Also be cautious about expressing   (34)emotions.Getting angry in Southeast Asia just makes you look silly.In some countries it is   (35)unwise  to kiss in public.
28.A.rejectB.reciteC.respectD.remove.
29.A.plansB.tipsC.argumentsD.choices
30.A.unsafeB.excitedC.satisfiedD.awkward
3l.A.reliefB.belongingC.humorD.direction
32.A.butB.forC.soD.or
33.A.forbiddenB.allowedC.expectedD.tolerated
34.A.emotionsB.concernC.interestD.views
35.A.naturalB.advisableC.unwiseD.unnecessary.

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

19.-Sorry I'm late.I got stuck in traffic.
-_________.You're here now.Come in and sit down.( 。
A.You are welcomeB.That's rightC.I have no ideaD.Never mind

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

6.---You have to believe in yourself.No one else will,if you don't.
---__________.Confidence is really important.( 。
A.It's not my cup of teaB.That's not the point
C.I don't think soD.I couldn't agree more

查看答案和解析>>

科目:高中英語 來源:2017屆江西省鷹潭市高三第二次模擬考試英語試卷(解析版) 題型:書面表達

某英語雜志正在舉辦“分享我的格言”的活動,你最喜歡的英語格言是Robert Collier的“Success is the sum of small efforts, repealed day in and day out”。請根據下面的寫作提示寫一篇投稿,內容包括:

1.你如何理解這句格言;

2 .舉例說明你的觀點。

注意:詞數100左右。

Dear Editor,

I'm Li Hua, a Senior 3 student. I feel it a great honor to get involved in such a meaningful activity.

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

__________________________________________________________________

Yours sincerely,

Li Hua

查看答案和解析>>

科目:高中英語 來源:2017屆江西省鷹潭市高三第二次模擬考試英語試卷(解析版) 題型:閱讀理解

Scientists announced on Thursday, February 11, 2016, at a press conference in Washington, D. C that the more than half-century search for gravitational waves finally succeeded. They confirmed that they had detected gravitational waves caused by two black holes mixing together about 1. 3 billion years ago. It had been the first time the phenomenon was directly detected since it was predicted by Albert Einstein l00 years ago.

A China led space gravitational wave detection project is recruiting (招募) researchers from around the world, china news, com reported. The Tianqin project was started by Sun Yat-sen University in Zhuhhai. It centers on research of key technologies in space gravitational wave detection. To make the project more competitive,global talents in areas such as gravity theory,space gravity experiments and precision measurement are sought with an annual salary of up to 1 million yuan ($ 153.000). according to the report.

Gravitational waves are not easily detectable. When they reach the Earth, an extremely sensitive detector is needed, as other sources of noise can overwhelm the signal. Luo Jun. president of Sun Yat sen University said the detection of gravitational waves is a huge challenge and the project reflects the research competence of China.

The 15-billion yuan project aims to send wave-detection satellites into space in 15 to 20 years with construction of a research center and observatory to be started soon. Researchers will likely cooperate with other scientists from the European Space Agency’s LISA Project.

Gravitational waves are ripples (漣漪) in space time generated during the earliest moment of the universe, when the universe experienced a brief but disordered period of expansion. The detection of gravitational waves is believed to help scientists understand more mysteries of the universe.

1.What can we learn about gravitational waves?

A. They caused black holes to mix together.

B. They came out about half a century ago.

C. They wore proved true by Albert Einstein.

D. They have been discovered recently.

2.According to the passage, the Tianqin project is intended to .

A. develop technologies to detect space gravitational waves

B. attract talented researchers from across the globe

C. conduct various space gravity experiments

D. seek precision measurement in space

3.The underlined word “overwhelm” in the third paragraph probably means “ .”

A. absorb B. replace

C. remove D. cover

4.The main purpose of the passage is to .

A. explain the importance of the gravitational wave detection

B. present some new findings in space exploration

C. introduce a gravitational wave research project

D. encourage international cooperation in scientific research

查看答案和解析>>

科目:高中英語 來源: 題型:填空題

14.The local government isdiscussing(討論)how to help the poor in the countryside.

查看答案和解析>>

科目:高中英語 來源: 題型:完形填空

5.Directlons:For each blank in the following passage there are four wordes or phrases marked A,B,Cand D.fill in each blank,with the word or phrase that best fits the context.
People in communities have slowly been pushed apart through the years,mostly because people simply aren't taking the time to say a simple"hello,"After considering this phenomenon,I decided I was going to(36)changethe way I was doing things.
My(37)doubtcame one morning when I was in the community library.I passed by a girl who(38)droppedher books out of her locker.Thinking like most that someone else would help her pick them up,I continued my way,However,when I had to (39)gobackbecause I stupidly forgot my book,I noticed she had just finished packing them up by herself,No one had stopped to(40)helpher.
"OK"I thought to myself,"this is where I should have changed."
My best opportunity came a few days later when I saw a man(41)sittingby himself waiting for the library to open,so I sat down next to him and began a(42)conversation.It was difficult to get started,and even when I had to say goodbye,almost every(43)responsefrom my new friend had a tone (語氣)of doubt in it,And who could blame him?
People aren't used to making an(44)unpreparedchat with a stranger.But a change,no matter how(45)desperately it is needed,doesn't just happen,It takes people like us to make it possible.I(46)adviseyou to take a small step out of your comfort zone and try to make someone's day a little brighter,Together,we can really make    society come (47)closeras a whole.

36.A.changeB.explainC.learnD.show
37.A.troubleB.doubtC.wishD.opportunity
38.A.tookB.droppedC.gotD.pulled
39.A.come outB.stand byC.go backD.turn up
40.A.pleaseB.greetC.helpD.praise
41.A.sittingB.walkingC.ridingD.running
42.A.discussionB.lessonC.reportD.conversation
43.A.jokeB.responseC.cryD.story
44.A.unchangeableB.unpreparedC.unforgettableD.unfinished
45.A.desperatelyB.frequentlyC.simplyD.widely
46.A.allowB.warnC.orderD.advise
47.A.laterB.straighterC.closerD.slower.

查看答案和解析>>

同步練習冊答案