I don't know whether you happen ____ it, but ...

I don't know whether you happen ____ it, but I'm going to study in USA this September.

A. to be heard　　 B. to be hearing

C. to hear　　 D. to have heard

高二英语单项填空简单题查看答案及解析

I don’t know whether you happen ________ it, but I am going to study in the UK for a year.

A. hear　　 B. to hear

C. to be heard　　 D. to have heard

高二英语单项填空困难题查看答案及解析

You asked whether I’m getting to know any local people . Well , that’s 1. quite difficult as I don’t speak much of the local English dialect yet . But last weekend another teacher, Jenny and I did visit a village which is the home of one of the boys , Tombe . It was my first visit to a 2. village. We walked for two and a half hours to get there – first up a mountain to a　 ridge from where we had 3. views and then down a steep path to the valley below. When we arrived at the village , Tombe’s mother, kiak, who had been pulling 4. in her garden, started crying “ieee ieee”. We 5. hands with all the villagers. Everyone seemed to be a relative of Tombe’s.

高二英语短文填空中等难度题查看答案及解析

We all know that water is tasteless. But it happens from time to time: you pick up the bottle of water you didn’t finish yesterday, and it tastes strange. Most often, you tend to drop the bottle in the trash bin, believing that the water has gone bad. But is it true?

According to Time, of course not, taste has little to do with quality of water.

According to Time, when water is exposed to the air for 12 hours, carbon dioxide interacts with the H2O in the water, and the pH value lowers slightly. As a result, the water has a different taste.

“But it’s most likely safe to drink,” Norwegian expert Truls Krogh told Science Nordic. “If the water is covered and of good quality to start with, in principle it can last a thousand years. That’s because when water is fresh, it contains little organic matter. As long as water is held in clean glasses or bottles, no pollutants will enter it to harm our health.”

People in countries like the US, the UK and Australia usually drink tap water. According to Time, if tap water is drunk within six months, the chlorine (氯气) in the water will be enough to kill any bacteria and keep it safe to drink.

However, there are also some exceptions. If you accidentally put your fingers into water or store water in unclean containers day after day, microorganism (微生物) will enter the water.

With the help of surrounding temperature, and sunlight streaming through windows, these microorganisms multiply quickly. Sooner or later, the water will be in the charge of the unfriendly bacteria. And if you drink the water too often, then you’re more likely to be ill.

And what about water in plastic bottles? Heat and plastic are a bad combination, US researcher Kellogg Schwab stresses. When plastic bottles are used at high temperatures, they produce a chemical called BPA. BPA is something that affects hormones (荷尔蒙) and research has tentatively linked it to “several health damage, including heart disease and cancer”, Time reported.

Schwab suggests replacing disposable (一次性的) plastic bottles with the refillable containers made of metal or glass to deal with BPA.

1.The purpose of the first paragraph is to ________________.

A. show an example B. draw a conclusion

C. analyze a phenomenon D. introduce a topic

2.Which of the following may Truls Krogh agree?

A. If the water tastes different, we shouldn’t drink it.

B. The water held in a clean container is likely safe to drink.

C. Although kept fresh, water may still have much organic matter.

D. Covered water can last for a thousand years.

3.What can we infer from the passage?

A. BPA does little harm to our health.

B. Tap water is always safe to drink.

C. Microorganisms are easy to produce in the heat.

D. Disposable plastic bottles have been banned already.

4.What can be the best title of the passage?

A. Why Water is Tasteless B. How to Get Clean Water

C. Does Water Really Go Bad? D. Learn to Protect Water

高二英语阅读理解困难题查看答案及解析

—Would you like to go to the cinema with me tonight?

— I’d like to, but it remains ________ whether I can finish my homework in time.

高二英语单项填空中等难度题查看答案及解析

— I think I’m going to die.

—____, Joe. You only have a cold.

A．Don’t mention it   B．Take it easy        C．It’s hard to say    D．Take care

高二英语单项填空中等难度题查看答案及解析

— I think I’m going to die.

— ________ , Joe. You only have a cold.

A．Don’t mention it   B．Take it easy        C．It’s hard to say    D．Take care

高二英语单项填空中等难度题查看答案及解析

—I’m sorry to have kept you waiting.

—____, Bill.

A．You’re welcome                       B．Go ahead

C．Don’t mention it                       D．No problem

高二英语单项填空中等难度题查看答案及解析

— I think I’m going to die.

— ________, Joe. You only have a cold.

A．Don’t mention it   B．Take it easy        C．It’s hard to say    D．Take care

高二英语单项填空简单题查看答案及解析

Shirley ______ a book about Tibet last year, but I don’t know whether she has finished it.

高二英语单项填空困难题查看答案及解析