Where do you keep ice? In the freezer, of course. That's what scientists might have thought when they were looking for a safe place to store ice from mountain glaciers from around the world. They’ve decided to store ice in Antarctica because global warming is causing some of the glaciers in places like the Alps to melt.
Jerome Chappellaz of the French National Centre for Scientific Research is involved in creating an ice vault (地下室）there. He says: “We are probably the only scientific community whose sample (样本) is in danger of disappearing from the face of the planet. If you work on rocks or on tree rings, the raw material is still here and will be for many centuries."
And why do scientists need to study ice from the Alps？Ice formed on the top of a mountain is made of snow accumulated over thousands of years. Trapped air bubbles (气泡) contain samples of the atmosphere that existed when that ice was formed. Ice is a record of climate. By examining ice, we know carbon dioxide in the atmosphere is higher now than in the last three million years. Researchers use this kind of data to build computer models and try to predict what might happen in the future.
The ice vault will be housed in a snow cave at the Concordia Research Station, which is operated by scientists from France and Italy. The ice samples will be sealed in bags and placed 10 meters below the surface at a constant temperature of -50*C. This will put the scientists’ minds at rest. Losing the ice samples would be a disaster, and nobody wants to see a mine of scientific knowledge lost forever in a giant pool.
1.What is the researchers' purpose of studying ice?
A. To learn about climate.
B. To learn about the Alps.
C. To trap air bubbles.
D. To reduce carbon dioxide.
2.Jerome compares ice with rocks and tree rings to state that ________.
A. ice should be stored at home
B. it’s more valuable to study ice
C. ice disappears very quickly
D. it's necessary to store ice
3.What makes Antarctica a safe place to store ice?
A. Its large mountains.
B. Its function as a freezer.
C. The abundant ice samples there.
D. The absence of global warming.
4.What do scientists think of storing ice in Antarctica?
A. They consider it an easy job.
B. They’re not optimistic about it.
C. They think it will cause disasters.
D. They think it’s a reliable way.
高二英语阅读理解中等难度题
Where do you keep ice? In the freezer, of course. That's what scientists might have thought when they were looking for a safe place to store ice from mountain glaciers from around the world. They’ve decided to store ice in Antarctica because global warming is causing some of the glaciers in places like the Alps to melt.
Jerome Chappellaz of the French National Centre for Scientific Research is involved in creating an ice vault (地下室）there. He says: “We are probably the only scientific community whose sample (样本) is in danger of disappearing from the face of the planet. If you work on rocks or on tree rings, the raw material is still here and will be for many centuries."
And why do scientists need to study ice from the Alps？Ice formed on the top of a mountain is made of snow accumulated over thousands of years. Trapped air bubbles (气泡) contain samples of the atmosphere that existed when that ice was formed. Ice is a record of climate. By examining ice, we know carbon dioxide in the atmosphere is higher now than in the last three million years. Researchers use this kind of data to build computer models and try to predict what might happen in the future.
The ice vault will be housed in a snow cave at the Concordia Research Station, which is operated by scientists from France and Italy. The ice samples will be sealed in bags and placed 10 meters below the surface at a constant temperature of -50*C. This will put the scientists’ minds at rest. Losing the ice samples would be a disaster, and nobody wants to see a mine of scientific knowledge lost forever in a giant pool.
1.What is the researchers' purpose of studying ice?
A. To learn about climate.
B. To learn about the Alps.
C. To trap air bubbles.
D. To reduce carbon dioxide.
2.Jerome compares ice with rocks and tree rings to state that ________.
A. ice should be stored at home
B. it’s more valuable to study ice
C. ice disappears very quickly
D. it's necessary to store ice
3.What makes Antarctica a safe place to store ice?
A. Its large mountains.
B. Its function as a freezer.
C. The abundant ice samples there.
D. The absence of global warming.
4.What do scientists think of storing ice in Antarctica?
A. They consider it an easy job.
B. They’re not optimistic about it.
C. They think it will cause disasters.
D. They think it’s a reliable way.
高二英语阅读理解中等难度题查看答案及解析
－Do you mind if I keep pets in this building?
—_________．
A．I’d rather you didn’t actually B．Of course not, it’s not allowed here
C．Great! I love pets D．No, you can’t
高二英语单项填空中等难度题查看答案及解析
-- Do you mind if I keep pets in this building?
--- ___________.
A．Yes, I love pets B．Of course not. It’s not allowed here
C．I’d rather you didn’t, actually D．No, you can’t
高二英语单项填空中等难度题查看答案及解析
－Do you mind if I keep pets in this building ? －_____________________.
A.Of course not. It’s not allowed here B. I’d rather you didn’t, actually.
C. Great! I love pets D. No, you can’t.
高二英语单项填空中等难度题查看答案及解析
Tips to Increase Your Productivity
Want to get more done in your day? Of course you do. 1.The good news is that everyone can increase the amount of tasks they accomplish in a day. Here are some tips to help you have a more productive day.
Make a plan for your day. Make sure you know how you want your day to go in advance, even before you start. 2. To work best, create the next day’s plan the night before so that every morning you spend time performing, not planning.
Break large tasks down into bits accomplished easily. Do you have a large project that’s just so big that you keep putting it off? Or maybe you’re just unsure of where to begin, so you put it off. 3.Therefore, you will feel a sense of accomplishment as you check the items of your list.
Always set your priorities (优先事项). 4. Figure out what must be done, do that first and rank the rest of your work according to importance. If you don’t get to the items at the end of your list, it won’t be a big problem, and you can do them another time.
5. If you are the most productive in the morning, that’s when you should hit it hard and do as much as you can. If you work better in the afternoon, take care of some things like emails in the morning and then accomplish the important projects in the afternoon. Keep on top of your work habits, and you’ll be more productive.
A. Reward yourself if you are productive.
B. This can provide you a roadmap for the day.
C. Be aware of when you are the most productive.
D. It’s tough to meet depressed people who are productive.
E. It’s important to accomplish the most important tasks first.
F. A good way is to break the project down into more manageable ones.
G. To stay competitive in any industry, you need to improve your productivity.
高二英语七选五中等难度题查看答案及解析
— Remember the first time we met, Jim?
— Of course I do. You _______ in the library.
A．have read B．had read C．were reading D．read
高二英语单项填空中等难度题查看答案及解析
— Mrs Green. Do you think I can get an “A” in the final exam if I start working hard now?
— Of course. .
A. Better late than never
B. Many hands make light work
C. You cannot burn the candle at both sides
D. Actions speak louder than words
高二英语单选题中等难度题查看答案及解析
--- Do you know him?
--- Yes, but I can’t remember ______I met him for the first time.
A. where B. what C that D. if
高二英语单项填空中等难度题查看答案及解析
—Do you remember________he came?
—Yes, of course. He came by train.
A. that B. when C. where D. how
高二英语单项填空简单题查看答案及解析
Zheng He’s first stop during the expedition was in ________ is a part of Vietnam today.
A．where B．what C．which D．that
高二英语单项填空中等难度题查看答案及解析