—What about the services in this hotel?—They ...

—What about the services in this hotel?

—They are at least as good as, if not superior to, ______ in yours.

A. it              B. those            C. that            D. the one

高三英语单项填空中等难度题查看答案及解析

—What do you think of the price of the computers at this store?

—They are at least equal in price to, if not cheaper than, _____ at any other store.

A．one              B．ones             C．that              D．those

高三英语单项填空中等难度题查看答案及解析

—What do you think of the price of these computers?

—They are at least equal in price to, if not cheaper than, ________ in other companies.

A. it                 B. ones               C. that                D. the ones

高三英语单项填空中等难度题查看答案及解析

--What do you think of the price of these computers?

--They are at least equal in price to, if not cheaper than, ____at the other companies.

A. it          B. ones         C．that           D．the ones

高三英语单项填空中等难度题查看答案及解析

— What do you think of the price of these computers?

— They are at least equal in price to, if not cheaper than, ____at the other companies.

高三英语单项填空简单题查看答案及解析

--- What’s the problem, sir?

--- You ________at least at a speed of about 100 miles per hour.

高三英语单项填空简单题查看答案及解析

Where are they talking now?

A. At a hotel.　　 B. At the airport.　　 C. In the bookstore.

高三英语短对话中等难度题查看答案及解析

They make a guest appearance in at least half of the articles on Medical News Today. They are responsible for many of the biggest breakthroughs in medicine. However, the humble lab mice also shoulder much of the blame when the failure of drugs to translate from animal models to humans keeps worrying the whole of medical research. Should scientists abandon lab mice altogether?

Mice were introduced into the lab back in the 1920s. An ambitious young American geneticist Clarence Cook Little strongly believed that cancer was an inheritable (有遗传性的) disease, and that mice were the ideal subjects for his experiments.

Other animals were, and still are, used to study disease. Cats and dogs are popular, as well as chimpanzees. Of course, ethical (伦理的) considerations get more complicated the further up the food chain you go. And mice are in sufficient numbers for researchers to conduct thousands of trials. Add to that the problem of cost: A standard lab mouse costs about $20---far cheaper than a healthy cat or dog. So their importance in scientific research has become well-established.

We share more than 97 percent of our working DNA with mice, a consequence of a shared ancestor 75 million years ago. This similarity has been both a blessing and a curse. While we share many basic biological processes, it is the three percent of the genes which set us apart from mice that can have a big influence on how our bodies work.

Mice may not always be the perfect model for understanding our own bodies, but they do hold real value to researchers. Their usefulness will only increase as scientists work out better ways to modify (修改) their genes to compensate for their shortcomings. The difficult part of the issue may be that researchers need to be more critical as they evaluate the type of model that is best for their experiment.

In the end, the story of scientists’ relationship with lab mice will possibly be one of gradual advances to improve an imperfect system. This is exactly how most scientific research progresses — by critically examining what we know to expand our knowledge of what we do not.

1.What does the underlined word “they” in the first paragraph refer to?

A.American geneticists B.cats and dogs

C.lab mice D.breakthroughs in medicine

2.Paragraph 4 mainly answers the question “________?”

A.Why do drugs that work in mice fail when tried in humans

B.Why are mice the ideal subjects for medical research

C.Why do we and mice share more than 97% of our working DNA

D.How can we understand our own bodies by studying lab mice

3.Which of the following statements is TRUE according to the passage?

A.Mice are in sufficient numbers because they are at the lower part of the food chain.

B.Many scientist are considering stopping the use of lab mice.

C.More genetically modified mice will be used in medical research in the near future.

D.It will become easier for researchers to choose the proper type of lab mice.

4.What is the author’s attitude to the use of lab mice?

A.Disappointed B.Supportive

C.Indifferent D.disapproving

高三英语阅读理解中等难度题查看答案及解析

Most of us in China are used to paying for everything with our phones. 1. At least, this was the case for Lim Swee Say from Singapore, who found his first experience with Chinese payment methods quite impressive. Lim was waiting in line to buy nuts at a street stall (货摊) in Shanghai and saw other customers show their phones and take the nuts without giving cash. 2. It seems that Singapore falls behind in mobile payments. Some Chinese tourists find it inconvenient when they have to use cash in Singapore.

3. According to Xinhua News Agency, many countries now accept mobile payment services for Chinese tourists, with WeChat Pay covered in 13 overseas countries and regions and Alipay over 200. It’s now common to see the familiar green or blue logos in tourist destinations around the world, from a tiny shop in the Scottish Highlands to a huge department store in New York.

Mobile payments are now a normal part of life in China, and the trend is sweeping other nations. According to Forrester Research, in America, mobile payments rose by 37 per cent in 2016. 4.

This may be partly because western mobile payment services require businesses to install expensive equipment before customers can use them. 5.

A. He was trying to figure out how they got paid.

B. Foreign tourists don’t like to pay with their mobile phones.

C. But in China, all it takes is a QR code (二维码) and a phone.

D. Soon after, he realized that the customers were using WeChat Pay.

E. Still, Chinese mobile payments were nearly 50 times greater than those in the US.

F. But for foreign visitors who aren’t familiar with this method, it may seem strange.

G. The popularity of Chinese mobile payments has pushed some foreign companies to accept them.

高三英语七选五中等难度题查看答案及解析

All the students in this school are required to____ at least two lectures on how to study every month.

A. attend      B. take park in      C. join in      D. go in for

高三英语单项填空中等难度题查看答案及解析