Mary is blind. If she ______ the bright world...

Mary is blind. If she ______ the bright world now, she would be full of joy.

A.will see B.can see C.could see D.has seen

高二英语单项填空困难题查看答案及解析

If she________ that Mary would come to see her, she would never have gone to the party.

A．had known        B．knew             C．knows            D．would know

高二英语单项填空中等难度题查看答案及解析

If Wu Dajing _____ the record in 2018 Winter Olympics. he would not be world famous now.

A. hadn't broken

B. hasn't broken

C. didn't break

D. doesn't break

高二英语单项填空困难题查看答案及解析

______ he had broken the record, he would be a world-famous runner now.

A. When             B. Because          C. If           D. Though

高二英语单项填空简单题查看答案及解析

If I ruled （统治）the world, I would _______ the world ______ everything that is bad.

高二英语单项填空简单题查看答案及解析

I don’t think Mary will be disappointed at the news, but I will see her ____ she is.

A. as if    B. so that   C. in case    D. even though

高二英语单项填空中等难度题查看答案及解析

--I could hardly recognize Mary just now!

--Me neither. She　　　　 so much.

A. changes　　 　　　　 B. is changing

C. has changed　　　　 D. had changed

高二英语单项填空中等难度题查看答案及解析

Just a year ago, the colors were bright under the waves. Now it’s gray — the Maldivian reef is dead. The coral is killed by the pressure of rising temperatures.

Coral reefs are areas underwater where small creatures live. The coral is hard material formed on the bottom of the sea by the skeletons of those creatures. But the world has lost about half its coral reefs in the last 30 years. Scientists are working to prevent their destruction. Due to global warming, over 90 percent of corals are expected to die by 2050. “To lose coral reefs is to fundamentally undermine the health of a very large proportion of the human race,” said Ruth Gates, director of the Hawaii Institute of Marine Biology.

Why are coral reefs important? Coral reefs support a fourth of all marine species, as well as half a billion people worldwide. They serve as barriers to protect coastlines from the storms. They provide billions of dollars from tourism, fishing and other trade. They are also used in medical research for cures for diseases. “Everyone should be concerned,” said biologist Ove Guldberg at Australia’s University of Queensland. “This is not just some distant dive destination. This is the basic structure of the ecosystem we depend on.”

The ocean is getting warmer. A rising temperature of just one to two degree Celsius can force coral to expel the algae (驱逐海藻) that live there. This leaves their white skeletons uncovered. It is a process called “bleaching”. Sixteen percent of the world’s corals died of bleaching in 1998. The problem has become much worse in recent years.

“We’ve lost 50 percent of the reefs, but that means we still have 50 percent left,” said Ruth Gates, who is working in Hawaii to breed corals that can better withstand increasing temperatures. She is also trying to “train” corals to survive rising temperatures. Gates says it is time to start “thinking outside the box”— find creative ways to help them.

1.The underlined word “undermine” in paragraph 2 means ___________.

A.weaken B.regain C.promote D.overlook

2.What’s the major concern of the scientists like Ove Guldberg?

A.People won’t find a dive destination in the future.

B.The effort to save corals will turn out to be fruitless.

C.The destruction of coral reefs will affect the earth ecosystem.

D.The bright sea has lost its charm because of those dead corals.

3.The fourth paragraph is mainly about ___________.

A.the harm of algae B.the process of “bleaching”

C.the importance of coral reefs D.the change of ocean temperature

4.Ruth Gates’ attitude towards the protection of corals is ___________.

A.proud B.cautious C.optimistic D.casual

高二英语阅读理解中等难度题查看答案及解析

Lucy is a very optimistic girl. ______ she is faced with difficulties, she always sees the bright side.

A. Every time     B. Now that             C. As soon as     D. On condition that

高二英语单项填空中等难度题查看答案及解析

Mary felt quite ______ from the outside world, because she couldn’t get access to the Internet and couldn’t receive any e-mail.

A. cut down        B. cut in           C. cut out         D. cut off

高二英语单项填空中等难度题查看答案及解析