Have you seen a yellow-and-black salamander (...

Have you seen a yellow-and-black salamander (火蜥蜴)? How about a scarlet frog? Scientists haven’t spotted either species in more than 20 years. What happened to them? Are the creatures still out there, or are they extinct?

Those are questions that scientists hope to answer. They recently set out around the world in search of those and other long-missing amphibians. An amphibian is an animal that spends part of its life in water and part on land. Frog, toads(蟾蜍), and salamanders are amphibians.

The experts are looking for about 100 species. They are searching at least 14 countries on five continents. They will look for the salamander in North America. They hope to find the scarlet frog in South America. They’re also looking for species in Africa, Asia and Australia.

Scientists are hopeful that they’ll find the amphibians—and soon! If the creatures are out there, they may need help. Many amphibians are endangered. The animals face many dangers including pollution and diseases. People cut down the forests where they live.

“If researchers can find the missing creatures, they might be able to figure out how to save them,” explains expert Robin Moore. He began searching for the amphibians earlier this month.

“This search will tell us a lot about how amphibians are doing,” Moore told WR News. “I don’t know what we will find, but that makes the search even more exciting.”

Lost in the Wild

Scientists’ hunt for missing amphibians is under way. Read about some of the species they hope to find.

Turkestanian salamander

This salamander is a mystery to scientists. Experts found a few of them more than 100 years ago, but none have been seen ever since.

Gastric brooding frog

Experts first discovered this frog in 1914 in eastern Australia. It may be extinct because of disease and habitat loss.

Rio Pescado stubfoot toad

Last sighting: 1995, in South America

Scientists hope to find this spotted toad in rivers and rainforests in Ecuador. The animal faces threats including pollution and disease.

1. Which of the following animals hasn’t been seen for over a century?

A. Rio Pescado stubfoot toad.

B. Gastric brooding frog.

C. Turkestanian salamander.

D. Scarlet frog.

2.It can be learned from the passage that _____.

A. the scarlet frog used to live in Africa

B. researchers have no way to save amphibians

C. the scientists will search 14 countries at most

D. Robin Moore has begun his search for amphibians

3. Why do the scientists want to find the missing amphibians?

A. Because they want to rescue the missing amphibians.

B. Because they want to set up a scientific program.

C. Because they want to do a scientific research on the missing amphibians.

D. Because they want to publish a report about the missing amphibians on WR News.

4. What does Moore think of the search for endangered amphibians?

A. It’s hopeful.            B. It’s interesting.

C. It’s tiring.            D. It’s dangerous.

高三英语阅读理解中等难度题查看答案及解析

Have you seen people who take pictures of food for more than 10 minutes before eating? How about those who beautify their selfie (自拍) so much that they can't be_______? There must be one or more who_______ in your social media. No matter_______they choose to share, they share the best but the most unreal.

Take my friend Chen. Every time we went to a restaurant, she would not take a_______ until all the dishes we _______were on the table.Then, she would spend five minutes on_______the dishes in a seemingly random but in fact _______order.Then the most important part: taking pictures.After that, she would choose one of the_______and click in the filter(滤镜) app.The food eventually looked 10 times more delicious than it really was,but we had no _______to really enjoy it— it all went cold.Actually Chen's real life is much less elegant. For example, she hates to wash the dishes,so she leaves them in the sink for________.

Many people care too much about others' opinions and try too hard to ________ others. They find it hard to be ________ and to accept themselves, and thus they are afraid to show their ________ life on social media.What they are trying to prove is________what they lack in reality.But this will not bring any________ to reality,as they still________ the same old pattern of life.

If they really want an elegant life,they should put more________ into achieving it________fabricating(伪造) it. Being more confident,________themselves and trying their best to be better is much more meaningful than________ their life on social media.

1.A.envied B.admired C.recognized D.defeated

2.A.exist B.survive C.flood D.spot

3.A.how B.what C.where D.whom

4.A.bow B.break C.breath D.bite

5.A.ordered B.served C.offered D.prepared

6.A.cooking B.washing C.setting D.collecting

7.A.messy B.arranged C.casual D.correct

8.A.dishes B.restaurants C.pictures D.tables

9.A.chance B.choice C.excuse D.reason

10.A.months B.years C.hours D.days

11.A.comfort B.please C.inspire D.discourage

12.A.independent B.generous C.responsible D.confident

13.A.secret B.real C.peaceful D.healthy

14.A.rarely B.hardly C.exactly D.nearly

15.A.difficulty B.change C.guidance D.harm

16.A.question B.dislike C.doubt D.follow

17.A.effort B.ambitions C.feelings D.money

18.A.other than B.more than C.rather than D.less than

19.A.identifying B.accepting C.persuading D.amusing

20.A.simplifying B.ruining C.beautifying D.worsening

高三英语完形填空中等难度题查看答案及解析

．—____

—Sorry, I don't know．

A．Have you seen Mr．Smith?            B．Where has Mr．Smith gone?

C．How about Mr．Smith?                D．Hello, Mr．Smith．

高三英语单项填空中等难度题查看答案及解析

---Hi Mary, haven’t seen you for a long time. __________

--- Fine. What about you?

A. How are you doing?       B. What are you doing?

C. How do you do.           D. What do you do?

高三英语单项填空中等难度题查看答案及解析

You have never seen him,but they're with you every time you fly.They record where you are going,how fast you're traveling and whether everything on your airplane is functioning normally.Their ability to withstand（经受得住）almost any disaster makes them seem like something out of a magic book.They're known as the black box.

When planes fall from the sky,as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30,2009,the black box is the best bet for identifying what went wrong.So when a French submarine（潜水艇）detected the device's homing signal five days later,the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.

In 1958,Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction.That was the first mode for a black box,which became a requirement on all U.S.commercial flights by 1960.Early models often failed to withstand crashes,however,so in 1965 the device（装置）was completely redesigned and moved to the back of the plane-the area least affected bu impact-from its original position in the landing wells（起落架舱). The same year, the Federal Aviation Authority required that the boxes,which were never actually black,be painted orange or yellow to aid visibility.

Modern airplanes have two black boxes: a voice recorder,which tracks pilots' conversations,and a flight-data recorder,which monitors fuel levels,engine noises and other operating functions that help investigators reconstruct the aircraft's final moments.Placed in an insulated ( 隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel,the boxes can withstand massive force and temperatures up to 2,000℉.When in deep water,they're also able to emit signals from depths of 20,000 ft.Experts believe the boxes from Air France Flight 447,which crashed near Brazil on June 1,2009,are in water nearly that deep,but statistics say they're still likely to turn up.In the approximately 20 deep-sea crashes over the past 30 years,only one plane's black boxes were never recovered.

1.In Paragraph 1，the author wants to say the black box_________.

A. comes from a comic book　　 B. is an necessary device on an airplane

C. can prevent disasters　　 D. can control the function of an airplane

2.From the black box on the Yemeni airliner _________ could be found.

A. the scene of the crash and the degree of the damage　　 B. the total number of passengers on board

C. homing signals sent by the pilot before the crash　　 D. data for analyzing the cause of the crash

3.Why was the black box redesigned in 1965?

A. The early models often got damaged in the crash.　　 B. New materials became available by that time.

C. Too much space was needed for its device.　　 D. The early models didn't provide the needed data.

4.What do we know about the black boxes from Air France Flight 447?

A. They have stopped sending homing signals.　　 B. There is an urgent need for them to be reconstructed.

C. There is still a good chance of their being recovered.　　 D. They were destroyed somewhere near Brazil.

高三英语阅读理解中等难度题查看答案及解析

My neighbor Mrs. Gargan first told me about it. “Have you seen the tree?” She asked as I was sitting in the backyard enjoying the autumn twilight （暮色）. “The one down at the corner,” she explained. “It’s a beautiful tree—all kinds of colors. All the passers-by stop to have a look. You ought to see it.” I told her I would, but I soon forgot about the tree. Three days later, I was jogging down the street when a splash of bright orange caught my eyes. For an instant, I thought someone’s house had caught fire. Then I remembered the tree.

I approached the tree to look at it closely. There was nothing remarkable about the shape of the tree. It was a medium-sized maple. But Mrs. Gargan had been right about its colors. Like the mess of an artist’s palette（调色板）, the tree blazed a bright crimson（深红色）on its lower branches and burned with vivid yellows and oranges in its center, and deep red at its top. Through these colors were light green leaves as yet untouched by autumn.

Walking closer I noticed several bare branches near the top, their small black branches scratching the air like claws. The fallen leaves lay like a red carpet around the trunk.

As I was amazed at this beauty, I thought of Ralph Waldo Emerson’s comments about the stars. “If the constellations（星座）appeared only once in a thousand years, imagine what an exciting event it would be. But because they’re up there every night, we barely give them a look,” he made a remark in Nature.

I felt the same way about the tree. Because its beauty will last only a week, it should be especially precious to us. And I had almost missed it.

Once in the 19th century when a man noticed a brilliant display of northern lights（北极光）in the sky over Massachusetts, he rang a church bell to alert the whole town’s people. That’s what I felt like doing about the tree. I wanted to awake the countryside to its wonder.

I didn’t have a church bell, but as I walked home, I did ask each neighbor I passed the same simple but important question Mrs. Gargan had asked me: “Have you seen the tree?”.

1.What did the author’s neighbor remind him?

A. To appreciate the beauty of the sunset.

B. To find what happened at the street corner.

C. To draw a picture of a tree.

D. To enjoy the beautiful tree in all colors.

2. From the passage we know _________.

A. the author felt it precious to see the beauty of the tree

B. the author thought of the stars as beautiful as the tree

C. the remarkable scene of the tree only appeared in a thousand years

D. People never had a close look at the tree

3. How did the author call on people to enjoy the wonder?

A. He rang the church bell.

B. He passed on the same question.

C. He awakened all neighbors up.

D. He required people to the corner.

4.The best title of the passage can be ________.

A. Have You Seen the Tree?

B. The Most Beautiful Tree

C. One of the Wonders in Nature

D. The Precious Moment in Life

高三英语阅读理解中等难度题查看答案及解析

---Have you seen my e-mail about our TESL, project?

---Yes. Luckily, I checked my e-mails yesterday. Normally, I ________my e-mail-box for days.

A．haven’t opened                  B．didn’t open   C．hadn’t opened D．don’t open

高三英语单项填空中等难度题查看答案及解析

---Have you seen my e-mail about our TESL, project?

---Yes. Luckily, I checked my e-mails yesterday. Normally, I ________my e-mail-box for days.

A．haven’t opened   B．didn’t open       C．hadn’t opened    D．don’t open

高三英语单项填空中等难度题查看答案及解析

--- Have you seen my e-mail about our TESL project？

--- Yes．Luckily I checked my e-mails yesterday．Normally I __　　 　 my e-mail box for days．

A．haven’t opened　　　　　　　　 B．didn’t open

C．hadn’t opened　　　　　　　　　 D．don’t open

高三英语单项填空中等难度题查看答案及解析

—Have you seen my e-mail about our TESL project?

—Yes. Luckily I checked my e-mails yesterday. Normally I ________my e-mail box for days.

A．haven’t opened   B．don’t open       C．hadn’t opened    D．didn’t open

高三英语单项填空中等难度题查看答案及解析