题目内容

【题目】One of the problems with passwords is that users forget them. In order to remember them, people use simple things like their dog’s name, their birth date, or the name of the current month-anything that will give them a clue to remember what their password is.

For the curious hacker (黑客) who has gained access to your online account, this is the same as locking your door and leaving the key under the doormat (门垫).

To create a safe password that is easy to remember, follow these simple steps:

● You should never use personal information as part of your password. It is very easy for someone to guess things like your last name, pet’s name, child’s birth date and other similar details.

● There are tools available to help attackers guess your password. With today’s computing power, it doesn’t take long to try every word in the dictionary and find your password, so it is best if you do not use real words for your password.

● You can make a password much safer by mixing different types of characters. Use some uppercase letters (大写字母) along with lowercase letters (小写字母), numbers and even special characters such as “&” or “%”.

● Rather than trying to remember a password that is created using various character types and is not a word from the dictionary, you can use a “passphrase”. Think of a sentence or a line from a song or poem that you like and create a password using the first letter from each word.

For example, rather than just having a password like “yr $ 1 Hes”, you could take a sentence such as “I like to read the About. Com Internet network security website” and convert it to a password like “il2rtA! nsws” by using the number “2” for the word “to” and using an exclamation point (感叹号) in place of the “I” for “Internet”. You can use a variety of character types and create a safe password that is hard to figure out, but much easier for you to remember.

● You should use a different username and password for each login you’re trying to protect. That way, if someone figures out one of your passwords, the others are still safe. Another approach, which is less safe, but provides a fair balance between security and convenience, is to use one username and password for sites and applications that don’t need the extra security, but use unique usernames and more safe passwords on sites that require more security, such as your bank’s website.

1How is a password made up of one’s dog’s name or birthdate?

A. It is safe and easy to remember.

B. It can get hacked easily by attackers.

C. It suits those who have a poor memory.

D. It is the most commonly used type of password.

2According to the article, what is a passphrase made up of?

A. Different character types.

B. A long dictionary word.

C. The title of a song or a poem.

D. The first letter from each word of a sentence.

3Which of these passwords might be the safest according to the article?

A. jessica208.B. yr $ 1 Hes.

C. HERO&37.D. il2rtA!nsws.

4What’s the article mainly about?

A. How to make your passwords safer.

B. How hackers get access to computers.

C. How to protect your private information online.

D. Typical problems with passwords.

【答案】

1B

2A

3D

4A

【解析】

短文大意:本文是一篇说明文,介绍了如何创建一个易于记忆的安全密码。

1题意:由狗的名字或生日组成的密码怎么样?考查细节理解。根据第一段In order to remember them, people use simple things like their dog’s name, their birth date, or the name of the current month-anything that will give them a clue to remember what their password is.和第一条建议● You should never use personal information as part of your password. It is very easy for someone to guess things like your last name, pet’s name, child’s birth date and other similar details.,可知人们用狗的名字或生日组成密码是为了好记,但是别人很容易猜到这些,所以很不安全,故选B

2题意:根据这篇文章,一个密码是由什么组成的?考查细节理解。根据第三条建议You can make a password much safer by mixing different types of characters. Use some uppercase letters along with lowercase letters, numbers and even special characters such as “&” or “%”.,可知混合不同类型的字符可以使密码更安全,故选A

3题意:根据这篇文章,以下哪个密码可能是最安全的?考查细节推断。根据第三条建议和给出的例子,可知“il2rtA !新南威尔士州”使用了多种字符类型,是最安全的,故选D

4题意:这篇文章主要讲什么?考查主旨理解。根据To create a safe password that is easy to remember, follow these simple steps,可知介绍的是如何创建一个易于记忆的安全密码,故选A

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【题目】For centuries, humans have wondered whether there is life on Mars. Why is Mars losing its air? Last week, the question was answered.

“The answer, is blowing in the wind,” said Michael Meyer. He is the lead scientist for Mars Exploration Program.

It turns out solar winds from the sun are slowly stripping( 除掉) away Mars' air. That is what scientists explained at a press conference.

Bruce Jakosky is the principal investigator on the MAVEN team. It is a spacecraft that collects information from Mars as it circles around the planet.

Today, Mars has a thin atmosphere. It is cold and dry. ______

"When we look at ancient Mars, we see a different type of surface. One that had valleys that looked like they were carved by water, lakes that were standing for a long period of time. We see an environment that was much more able to support liquid water."

Recently scientists found a kind of liquid water that flows with salt down a mountain area of the planet. But, it is not always there. Scientists already knew that ice exists on Mars. So why is it important to find liquid water?

"It means that we have a resource. And when we're looking at sending humans to Mars, water is one of the key things that we need to have. Not only for the astronauts to drink, but also to make oxygen and fuel."

Sending humans to Mars will be in the 2030s. Those chosen might fly any number of space vehicles still in development.

Human beings are developing rockets and spacecraft to get people to Mars. Scientists want to know how the human body reacts to being in space for long period of time.

Whether there is life on Mars remains unanswered. But some scientists think there might be some kind of microbial life on the planet. Finding life on another planet would change the way we view the whole universe.

1What was the surface of ancient Mars like?

A. It had thin air.B. It was dry.

C. It had valleys that looked like they were carved by water.D. It had no water.

2Which statement is TRUE according to the passage?

A. The surface of the Mars is different from it used to be.

B. Scientists have known whether there is life on Mars.

C. People can not send humans to Mars forever.

D. There is not any atmosphere on Mars.

3What does the underlined word "Those" in the text refer to?

A. ScientistsB. RocketsC. AstronautsD. Vehicles

4Which of the following is the best for“______”in Paragraph 5?

A. But it used to be much different.B. It was the same case in the past.

C. It's always like this.D. It will be different in the future.

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