Until recently, scientists had mapped only about 20 percent of the sea floor. But our knowledge of the deep seas is changing because of information from satellites. Scientists have produced a new map that provides a detailed picture of the oceans. The map is expected to help oceanographers (海洋学家), industry and governments.

The new map is twice as detailed as the map made 20 years ago. David Sandwell is a geophysics professor at the University of California. He and other scientists worked on the mapping project. He says they turned to space to look deeper into the ocean.

The scientists collected and studied information from two satellites. Some of the data came from the European Space Agency’s Cryo-2 satellite. It was placed in Earth's orbit to watch sea ice. The other satellite is the American space agency's Jason-1. It is studying the surface of the oceans. Scientists combined the satellite data with images gathered by sonar (声波定位仪) equipment on ships. Sonar works by sending sound waves through the water. When the sound waves hit an object, its presence is confirmed.

The new map shows the sea floor as it has never been seen before. It shows thousands of underwater mountains and places where continents pulled apart. It shows where earthquakes were active many years ago. They all are buried deep underneath the ocean floor.

David Sandwell says the map is a powerful tool for fisheries, those interested in protecting the environment and for oil exploration.

“The petrol exploration industry is interested in how to reconnect the continents, bring them back together tectonically so you can map the basins on one continental edge—say, Africa—and use that to establish where the similar basin would be on the other continental edge in South America.”

If scientists know that information, they may be able to find oil fields. The new data also will help scientists improve their estimates of ocean depths. This information can help ships travel safely and improve military operations and scientific projects worldwide.

Mr. Sandwell thinks scientists will make many more discoveries as they examine the new map and the information it provides.

1.Which one is not mentioned about the benefits brought by the new map?

A. Fisheries. B. Scientific projects.

C. Ship manufacture. D. Oil exploration.

2.What can we know about the new map?

A. It shows where earthquakes will happen.

B. It will be helpful to industry and governments.

C. It is three times as detailed as the old one years ago.

D. It shows the sea floor as it has ever been seen before.

3.The text is likely to appear in _________.

A. a newspaper B. an advertisement

C. a science magazine D. a finance report

4.Which of the following can be the best title for the text?

A. The detailed picture of the oceans

B. Underwater mountains and places

C. More discoveries about the oceans

D. Scientists create new maps of ocean floor

How to Protect Yourself from Hackers Online

An increase in cyber-attacks (网络攻击) 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 (浏览器) 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.

If you have a little child, who hates sitting in a child car seat, then the FreedomRide is the answer to your problem.

Would you want to be ____ in an unchangeable position every time you’re in the car? No. You Wouldn’t!

When a ____ sits in a car for any length of time, we stretch, we change the position, we move our legs, and shift ____. We do this automatically, and without ____. But kids in a traditional car seat can’t do this. They are stuck in one position, and they ____ move. We move because the ___ of blood needs to be restored in our legs as we sit in the ____ position for any extended length of time.

In a traditional car seat, the child can’t move to ____ the pain, so it ____ them in a bad mood.

The FreedomRide lets them have a little ____, and still be safe. The 5-point Harness gives them additional safety ____ a traditional child car seat.

I am the Webmaster for islandbreeze.com, and ____ JoeySafe asked us to redo their web site, I was ____ by this system. That is because I have two small children, and we obviously ___ car seats. I live in Southern California, and every ____ of months, my wife, the girls and I, go to see grandma who lives in Nevada. It’s a 5-hour drive, so the FreedomRide ____ well. Our trips are so much better now, especially, since there is ____ room in the car without the car seats.

The FreedomRide really did ____ it easier to go on trips. The only thing you need when you use the Joeysafe ____ your old child seat is a pillow. ____, my kids want to take a pillow anyway! As a dad, I feel safe driving with the kids in the FreedomRide.

1.A. driven B. stuck C. stricken D. hidden

2.A. grown-up B. man C. woman D. kid

3.A. suddenly B. strongly C. constantly D. smoothly

4.A. stopping B. moving C. saying D. thinking

5.A. needn’t B. daren’t C. can’t D. mustn’t

6.A. circulation B. transport C. supply D. pressure

7.A. old B. same C. soft D. hard

8.A. sharpen B. remove C. suffer D. reduce

9.A. takes B. holds C. puts D. gets

10.A. rest B. freedom C. activity D. time

11.A. over B. above C. under D. around

12.A. before B. unless C. until D. when

13.A. astonished B. attracted C. puzzled D. satisfied

14.A. use B. hate C. refuse D. like

15.A. other B. several C. second D. couple

16.A. sells B. washes C. works D. runs

17.A. much B. more C. many D. some

18.A. find B. feel C. let D. make

19.A. instead of B. apart from C. as well as D. no longer

20.A. However B. Though C. Besides D. Therefore

Children always appreciate small gifts of money. Mum or dad, of course, provide 1.regular supply of pocket money, but uncles and aunts are always a source of extra income. With some children, small sums go a long way. Only very thrifty children manage 2.（fill）up a money box.

My nephew, George, has a money box but it is always empty. Very few of the fifty pence pieces and pound 3.（coin） I have given him have found 4.（they）way there. I gave him fifty pence yesterday and advised him to save it. Instead he 5. (buy) himself fifty pence worth of trouble.

On his way to the sweet shop, he dropped his fifty pence and it disappeared down a drain.

George took off his jacket, rolled up his sleeves and pushed his right arm 6. the drain cover. He could not find his fifty pence piece 7. (where), and what is more, he could not get his arm out. A crowd of people gathered round him and a lady rubbed his arm with soap and butter, but George was 8. (firm) stuck.

The fire brigade was called and two fire fighters freed George 9. (use) a special type of grease. George was not too upset by his experience 10. the lady who owns the sweet shop heard about his troubles and rewarded him with large box of chocolates.

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。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(＼)划掉。

修改：在错的词下画一横线，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。

My name is Li Hua, aged 18, a male Chinese student. I love west culture and I’m crazy about sang English songs.

Giving the opportunity to join your summer camp, I’d like to visit some big cities, tour the countryside and even stay with an American family to full experience the cultural customs in the US. In addition to, it would be a great pleasure to talk with some local students and campers about the cultural and educational differences in different country.

In order to make my trip more meaningful, I planned to teach foreign students some simple speaking Chinese.

Hopefully, my oral English will be improved a lot on the trip, and later I can keep contact with my newly-making friends through the Internet.

假定你是李华，要邀请在你校交流的英国学生Peter到翠湖公园参加英语角活动。请根据以下图画给Peter写封英文邮件，告诉他路线，并希望他周日上午九点从所住的宾馆出发，到达公园正门。

1.字数100左右，开头已经给出。

2.可适当添加细节，以使行文连贯。

Dear Peter,

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua