Your DNS cache (域名存储器) stores the locations (IP addresses) of web servers that contain web pages which you have recently viewed. If the location of the web server changes before the entry in your DNS cache updates, you can no longer access the site.
If you encounter a large number of HTML 404 error codes, you may need to clear your DNS cache. After you clear your DNS cache, your computer will query(询问) nameservers (域名服务器) for the new DNS information. The following methods allow you to remove old and inaccurate DNSinformation that may result in 404 errors.
Windows 7
To clear your DNS cache if you use Windows 7,perform the following steps:
Click Start.
Enter cmd in the Start menu search text box.
Right-click Command Prompt and select Run as Administrator.
Run the following command:
Ipconfig/flushdns
If the command succeeds, the system returns the following message: Windows IP configuration successfully flushed the DNS Resolver Cache.
Windows® 8
To clear your DNS cache if you use Windows 8, perform the following steps:
On your keyboard press Win+X to open the WinX Menu.
Right-click Command Prompt and select Run as Administrator.
Run the following command:
Ipconfig/flushdns
If the command succeeds, the system returns the following message:Windows IP configuration successfully flushed the DNS Resolver Cache.
Windows XP, 2000, or Vista®
To clear your DNS cache if you use Windows XP, 2000, or Vista®, perform the following steps:
Click Start.
On the Start menu, click Run.
If you do not see the Run command in Vista, enter run in the Search bar.
Run the following command:
ipconfig/flushdns
If the command succeeds, the system returns the following message: Successfully flushed the DNS Resolver Cache.
MacOS® 10.10.4 and above
To clear your DNS cache if you use MacOS X version 10.10.4 or above, perform the following steps:
Click Applications.
Click Utilities.
Click Terminal.
Run the following command:
sudo killall-HUP mDNSResponde
If the command succeeds, the system does not return any output(输出信息).
Warning:
To run this command, you must know the computer‘s administrator account password.
1.If the command succeeds, all the following systems return a massage except .
A. Windows® 8 B. Windows 7
C. Windows XP, 2000, or Vista® D. MacOS® 10.10.4 and above
2.What is the main purpose of writing the passage?
A. To introduce something about several systems on computer.
B. To explain how to solve some problem in several systems on computer.
C. To explain how to access some sites in several computer systems.
D. To explain how to install DNS cache in several computer systems.
3.Which of the following is true about DNS cache according to the text?
A. DNS cache stores the IP addresses of web servers.
B. DNS cache needs to be cleared, if you meet a large number of error codes.
C. DNS information may result in 404 errors.
D. Unless the entry in your DNS cache updates, the location of the web server won‘t change.
We offer a full range of services to make your IKEA experience more complete:
Old Kitchen Removing Service
Are you going to buy a brand-new kitchen in IKEA? So how to deal with your old kitchen at home?
Don‘t worry! IKEA is now providing professional <u>dismantling</u> and removing service for old kitchen to you.
By this service you can have your new kitchen at home easily.(For service detail and charge please go to the staff of kitchen department.)
Transport Service
Need a way to get your new home-furnishings home? You can rent a transport or hire us to deliver it for you.Just talk to our Customer Service department for details.
Return Policy
As long as the items are undamaged, unassembled(未组装的)and unused, you could return them in their original package within 60 days (IKEA FAMILY member within 180 days) together with your original receipt/invoice (bank card POS receipt is needed if you have paid this way), we will refund you the same way as you have paid.Sorry, we cannot accept exchange or return of food, plants, liquid bathing products, AS-IS products,customized products, kitchen electrical appliance and all products that have already been cut, sewed orpainted.“The exchange and return policy above applies only to the products purchased from IKEA stores in mainland China”
IKEA Restaurant/Café
The restaurant/café serves both classic Swedish dishes and local favorites, and is one of the most popular areas of the whole IKEA store. Shopping at IKEA is fun and offers great value, but can also be hard work, so stop by and treat yourself to a refreshing drink and a bite to eat.
1.According to the clue the meaning of the underlined word “dismantling” should be .
A. taking apart B. making up
C. picking up D. leaving off
2.What can we learn from Return Policy?
A. Any product bought can be returned if they are undamaged.
B. The store pay back your money in cash whatever way you use.
C. The valid time for return service is within 180 days.
D. The return service only goes for IKEA stores in mainland China.
3.Which of the following is NOT mentioned in the passage?
A. Your new kitchen is available in an easy way.
B. The furniture can be transported to your house.
C. They have flexible payment choices.
D. You can enjoy delicious food in IKEA.
4.The passage is probably taken from .
A. a guide B. a travel book
C. a newspaper D. a magazine
假如你是银川一中的学生李华，你班最近组织了一次关于“怎样更快乐地学习英语”的经验分享会，请根据以下提示用英语写一篇发言稿。
内容要点:
1.分享自己学英语的好方法(课内课外)。
2.提出至少两条建议。
注意:
1. 词数 100 左右。开头和结尾已经写好，不计入总词数。
2. 可以适当增加细节，以使行文连贯。
Dear classmates,
It's a great pleasure for me to be here today and share my experience of learning English with you.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Thank you for listening.
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处.每处错误仅涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(
) 并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线，并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者(从第11处起)不计分。
Last Saturday, eighty students from our school pay a visit to Ningxia Science and Technology Museum.
The museum, which main task is to spread the knowledge of science and technology, covers area of 15,000 square meters. The moment when we entered the museum, the exhibition caught their attention. In the museum, we saw the latest progresses in science and technology. Moreover, we did an amazed scientific experiment by ourselves. What appealed for us most was the 4D film which made us feel we were in real events.
Though the visiting time was slight short, we gained a lot. It is so an instructive activity that we hope more will be organized in the future.
Modern-day robots are programmed to handle tasks that are normally carried out by humans. They are faster and 1. (accurate) than human workers and never ask for a pay rise or take breaks! Robots are also able to work 2. dangerous situations.
Researchers at the University of Arkansas in the United States say that the mobile robots which have been created already are ideal for the job of hospital attendants. These mobile robots store a 3. (detail) map of the hospital in their memory. The robots’ sensors can detect 4.(barrier) and quickly get out of the way. Although these robots cannot go up and down stairs, they know how 5.(press) a button of an elevator.
Researchers at a Massachusetts’ university are creating the first robot 6.can constantly change its shape according to the task it has to do. These robots are called polymorphic robots. “Polymorphic” means7. ability to take different forms. A 3D printer 8.(place) inside the robot to create the desired shape. The entire process of changing forms in this manner is called the rapid printing technology which is 9.(fair) common in the car industry to produce complex 3D structures quickly. Once the robot has performed 10.(it) task, it can be melted down and recycled into another useful part by the 3D printer.
It had been a long time since I had been to Jacksonville, Florida. I had driven to town _______ to find the old barber shop where my hair had been cut as a child. As I _______around, I was a little disappointed to see the old buildings had been _______with new high-rise ones.
After walking about a block I saw an open shoe store. Wondering whether I could get the _______, I walked in. As I stood talking to the salesman, the front door opened and a young man about twenty came into the store in a _______. “I need a new pair of shoes,” said the _______. As he turned the corner, I was _______to see that the young man had no legs.
Seeing us_______, the young man said, “When I was a _______, my parents used to buy me a new pair of shoes every year. That was such a wonderful feeling— _______I have never forgotten.”
Soon the salesman came with a large box. He put it down on the floor, took out a boot and handed it to the young man. Placing the boot _______his nose, the boy closed both eyes, and took a large breath. I did not know what to say as tears began to roll down his _______.
Suddenly we heard the salesman shouting to an old man _______who looked in the window from time to time. The young man looked at the old man and then turned to me. “Would you walk out and see what _______that fellow wears?” he_______.
Wondering why, I _______walked to the front door, opened it and asked the old man to _______. “What size shoes do you wear?” the boy asked the man. “I don’t know,” he replied, as he_______his old tennis shoes. “I would say nine and a half,” I suggested. “What’s your _______hiking boot in nine and a half?” the boy asked the salesman. Within a minute, the salesman returned with a pair of hiking boots. The boy ________out, took the boot, placed it to his nose and took a large breath. Once again, tears came to his eyes. “Sir, would you mind trying on these boots?” the boy asked the old fellow.
1.A. needing B. waiting C. hoping D. helping
2.A. ran B. wandered C. jumped D. wondered
3.A. ruined B. decorated C. dealt D. replaced
4.A. fare B. answer C. shoes D. service
5.A. boot B. car C. wheelchair D. lorry
6.A. customer B. owner C. waiter D. salesman
7.A. excited B. shocked C. ashamed D. embarrassed
8.A. determined B. willing C. delighted D. puzzled
9.A. kid B. manager C. barber D. lawyer
10.A. everything B. something C. nothing D. anything
11.A. across B. over C. to D. within
12.A. sleeves B. hands C. cheeks D. legs
13.A. in peace B. in rags C. in relief D. in return
14.A. color B. material C. price D. size
15.A. reminded B. recognized C. requested D. responded
16.A. slowly B. sincerely C. suddenly D. swiftly
17.A. elect B. enter C. express D. exist
18.A. dug out B. set down C. looked out D. looked down at
19.A. heaviest B. dearest C. best D. quickest
20.A. reached B. died C. sorted D. broke
