If you want to ________ a pleasant visit, fin...

If you want to ________ a pleasant visit, find out as much as possible about the manners and customs of your host country.

A．ensure           B．deserve           C．secure            D．serve

高三英语单项填空简单题查看答案及解析

If you want to find out a piece of information about anything, the best place to search ________ it is Wikipedia. This online encyclopedia is ________(write) by thousands of people around the world. Anyone can add or change the information if he or she finds it not correct or not well written. In this way, people who know a lot about a certain subject can write about it ________  ________ they are not university professors.

What is more, Wikipedia includes articles written in about 253 languages. This fact makes it ________ of the few websites (վ) on the Internet that are truly international. It was started in 2001 by Larry Sanger and Jimmy Wales, as a free online English-language encyclopedia project. By April 2008, over 10 million articles ________( put on) Wikipedia. A quarter of the articles are in English. Wikipedia is also a place ________ people can find the latest news.

However, Wikipedia has its own problems. There have been many complaints that some of the information on Wikipedia is not accurate and some important subjects are not included. This has led to arguments between the writers of the articles. The people ________(run) Wikipedia say that the accuracy of the information is improving and that it is one of the top 20 visited websites on the Internet.

So, if you are looking for some information, why not ________(try) Wikipedia?

高三英语其他题中等难度题查看答案及解析

Police Force presents

Community Roadshow 2017

Want to find out more about police work? Come and visit us at the

various locations across Singapore. Enjoy the performances by the

friendly dogs from the Police K9 Unit and the Police Band.

Come with your family and take part in the fun activities

Organised by the Singapore Police Force

1.What is the purpose of the advertisement?

A. To inform participants of the Art Competition.　　 B. To advertise the fun pack.

C. To promote the Police Community Roadshow.　　 D. To encourage rock climbing.

2.Participants who wish to take part in the Art Competition must register online by

A. 12 June 2017　　 B. 16 June 2017

C. 17 June 2017　　 D. 19 June 2017

3.What do we know from the advertisement?

A. There will be two dog shows daily.

B. The Road Show will end at 6 each day.

C. There is a police car keychain in the fun pack.

D. The Singapore Police Force is one of the sponsors.

高三英语阅读理解中等难度题查看答案及解析

If we want to find out what kind of technology people used in the past, we normally have to rely on archaeologists to find ruined buildings and parts of tools or instruments or machines. Archaeologists then try to reconstruct, sometimes with the help of computer technology, what these ancient buildings and objects must have looked like, and how they might have been made. Sometimes historians are lucky and find an ancient document with a written description of these ancient buildings and objects.

We can understand, then, why Chinese historians were so excited when they found cave paintings which show ancient science. They found these paintings in the world-renowned Mogao Grottoes of Dunhuang City, in Northwest China's Gansu Province. There are 500 man-made caves and they have survived for at least 1,600 years. Almost all of these caves have paintings on their ceilings or walls and they date from the 4th to 14th centuries. Wang Jinyu is an expert on these cave paintings (also called frescoes) and he says: “We discovered frescoes containing scientific and technological content in almost all of the caves which have frescoes.” What is remarkable about these cave paintings according to the Xinhua News Agency is that they provide evidence of "scientific and technological inventions by ancient Chinese in maths, physics, chemistry, astronomy, geography, agronomy, architecture, textiles, traffic and transportation, arms and military equipment and medical sciences".

Among the discoveries experts have made are cave paintings showing ancient techniques of pottery making and wine production and paintings showing ancient weaving machines and then toothbrushes! The paintings also give some evidence of the lifestyle at the time with, for example, pictures of people boiling milk over 1,000 years ago. Experts believe that there is more evidence to be found, but even now the caves are a wonderful natural museum. If the walls and ceilings of the caves were all put together they would form a tapestry 20 kilometers long and 2 meters high!

It won't be possible to travel back in time-that only happens in films-but visiting these caves would be the nearest experience you could get to travelling back in time.

1.Why were Chinese historians excited when they found cave paintings showing ancient science?

A. Because they had rarely seen cave paintings.

B. Because they could make the place a tourist attraction.

C. Because they could learn about ancient science through them.

D. Because they would be given lots of money for the discovery.

2.The Mogao Grottoes of Dunhuang City______.

A. have 500 man-made caves

B. have been there for at most 1,600 years

C. help us to know little about ancient science

D. have paintings on their ceilings in every cave

3.Experts had discovered cave paintings showing the ancient techniques of ______.

A. pottery making and wine production

B. weaving machines and toothbrushes

C. boiling milk over 1,000 years ago

D. architecture and weaving

4.The article is more likely to be selected from the magazine ______.

A. Modern Countries B. Business World

C. Network World D. Popular Science

高三英语阅读理解困难题查看答案及解析

We had wanted to finish our task by noon,but it didn’t quite _____ as planned.

高三英语单项填空中等难度题查看答案及解析

If you want to slow aging, you might want to eat less. This finding is good news---if you were a mouse. The researchers studied mice, not people.

John Price and other researchers studied two groups of mice. One group was able to eat as much as it wanted. The researchers limited what the mice in the other group ate. Their diet had 35 percent fewer calories than the first group of mice.

Price says the mice with the diet restrictions were “more energetic and suffered fewer disease.” They were not just living longer but seemed to stay younger for a longer period of time.

The researchers found that fewer calories slow down a natural mechanism in cells called ribosomes. Price explains that ribosomes are responsible for making important proteins in the cells. But with fewer calories, they slow down. This gives the cells more time to repair themselves.

The researchers say ribosomes use from 10 to 20 percent of the cell’s energy to make those proteins. Price wrote that “because of this, it is impractical to destroy an entire ribosome” when it starts to break down. However, “repairing individual parts of the ribosome on a regular basis enables ribosomes to continue producing high quality proteins for longer than they would otherwise. This top quality production, in turn, keeps cells and the entire body functioning well.”

Price said, “ribosome is a very complex machine, like a car.” They need “maintenance to replace the parts that wear out the fastest. When tires wear out,” he explained, “you don’t throw the whole car away and buy a new one. It costs less to replace the old tires.”

“Food,” he said, “isn’t just material to be burned---it’s a signal that tells our body and cells how to respond.” Price said the findings help to explain how exactly our bodies age. And this may “help us make more educated decisions about what we eat.”

1.What can we know about the mice with limited calories from the study?

A. They can keep healthy easily

B. They need more energy to be active

C. They can look younger than they are

D. They will live a longer life like humans

2.What will happen to ribosomes if there are fewer calories?

A. They will completely break down

B. They make proteins in the cells slowly

C. They will produce high quality proteins more

D. They may need more time to repair themselves

3.Price explained the ribosomes’ role of repairing themselves by _________.

A. telling a story

B. listing basic data

C. making comparisons

D. experimenting on mice

4.What does the text mainly deal with?

A. Food decides how long you live

B. Can you slow down your aging process?

C. Eating less may help you live longer

D. Should your diet be reduced for your health?

高三英语阅读理解困难题查看答案及解析

We had wanted to finish our task by noon,but it didn’t quite ___ as planned.

A.find out                              B.give out

C.hand out                              D.work out

高三英语单项填空中等难度题查看答案及解析

______ she has earned her PhD, she wants to find a job with higher pay.

A．As if　　 　　　　　 B．Now that

C．Even though　　　　 D．In case

高三英语单项填空中等难度题查看答案及解析

______ she has earned her PhD, she wants to find a job with higher pay.

A. As if　 　　　 B. Now that

C. Even though　 D. In case

高三英语单项填空简单题查看答案及解析

______ she has earned her PhD, she wants to find a job with higher pay.

A． As if　　　 　　　　 B． Now that

C． Even though　　　 D． In case

高三英语单项填空简单题查看答案及解析