The Arctic, which is abundant in oil, _____ s...

The Arctic, which is abundant in oil, _____ second only to the Middle East, is ______ home to seals.

A. the; a    B. /; the    C. the; a    D. /; /

高二英语单项填空简单题查看答案及解析

Due to climate change, Arctic ice is breaking up earlier in the spring, and its area is decreasing. This is creating problems for polar bears that make their homes off northern Alaska and in Hudson Bay.

Polar bears off Alaska normally hunt and raise their young on ice sheets that float on the ocean. But as the ice has melted, the polar bears have been forced to spend more time on land. There, they have begun to frequent beaches, feeding on the remains of whales caught by native hunters. For polar bears, this food is less nutritious than seals that they normally catch on ice sheets. The shrinking（减少） ice has also forced more polar bears into the ocean. In the past, they only had to swim short distances between ice sheets. But as the ice has shrunk, polar bears have been forced to swim longer and longer distances in the open ocean. This poses a severe danger during rough weather, and an increasing number of drowned polar bears have been observed.

In Hudson Bay, the ice breaks up three weeks earlier in the spring now than it did 20 years ago. Polar bears on Hudson Bay fast（绝食） during the summer, waiting for ice to form in the fall to hunt. Every year, the summer gets longer, and the bears get skinnier. Over the past 25 years, the average weight of the female bears has dropped 68 kg. This loss affects their ability to reproduce, and already the number of births has dropped 15 percent. Unless the bears can learn to survive these climate changes, these giants of the ice may one day disappear.

1.What is Arctic ice doing earlier each year?

2.What is true of polar bears that are spending more time on land in Alaska?

3.What do polar bears in Hudson Bay do during the summer?

4.In which publication would you most likely find this passage?

高二英语阅读理解中等难度题查看答案及解析

In which year is the man in college now?

A.The first year. B.The second year. C.The third year.

高二英语短对话中等难度题查看答案及解析

We are proud of our hometown, which is________in coal and natural crystal（水晶石）.

A．abundant      B．universal           C．remote       D．autonomous

高二英语单项填空中等难度题查看答案及解析

The new policy allows a couple to have a second birth _____either is an only child.

A. though        　　　 B. if            　     C. unless                 D. until

高二英语单项填空中等难度题查看答案及解析

If the man is only interested in your looks, ________just shows how shallow he is.

A .as           B. which           C. what           D. that

高二英语选择题简单题查看答案及解析

It is only when the disease has progressed to the AIDS ____ a person begins to look sick.

A．which            B．what             C．who              D．that

高二英语单项填空中等难度题查看答案及解析

______is known to us all, only the theory ______ on practice can be practical.

A．Which; base       B．Which; based      C．As; based         D．As; basing

高二英语单项填空中等难度题查看答案及解析

We have to give the users something new ________ what we’ve already offered, which is the only way to broaden the appeal of the website.

A．regardless of                           B．in addition to

C．in exchange for                         D．according to

高二英语单项填空困难题查看答案及解析

We have to give the users something new ________ what we’ve already offered, which is the only way to broaden the appeal of the website.

A. regardless of                         B. in addition to

C. in exchange for                       D. according to

高二英语单项填空中等难度题查看答案及解析