The IOC Evaluation Commission has come to a _...

The IOC Evaluation Commission has come to a ________ conclusion that Beijing is capable of hosting a successful 2022 winter Olympics.

A. tentative　　 B. virtual

C. definite　　 D. subtle

高三英语单项填空中等难度题查看答案及解析

A recent study of ancient and modern elephants has  come up with the unexpected conclusion that the African elephant is divided into two distinct (不同的) species

The discovery was made by researchers at York and Harvard universities when they were examining the genetic relationship between the ancient woolly mammoth and mastodon to modern elephants—the Asian elephant, African forest elephant and African savanna elephant

Once they obtained DNA sequences (序列) from two fossils (化石)，mammoths and mastodons， the team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths.

The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence of the two species took place around the time of the divergence of Asian elephants and woolly mammoths. This result amazed all the scientists.

There has long been debate in the scientific community that the two might be separate species but this is the most convincing scientific evidence so far that they are indeed different species.

Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3.5metres while the forest elephant has an average shoulder height of 2.5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA.

Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, “We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose .”

1.One of the fossils studied by the researchers is that of ________.

A. the Asian elephant                   B. the forest elephant

C. the savanna elephant                D. the mastodon elephant

2.The underlined word “divergence” in paragraph 4means “________”

A. evolution        B. exhibition       C. separation         D. examination

3.The researcher’s conclusion was based on a study of the African elephant’s _____

A. DNA           B. height          C. weight            D. population

4.What were Alfred Roca’s words mainly about?

A. The conservation of African elephants.

B. The purpose of studying African elephants

C. The way to divide African elephants into two units

D. The reason for the distinction of African elephants

5.Which of the following can be the best title for the passage?

A. Naturalist’s Belief about Elephants.

B. Amazing Experiment about Elephants

C. An Unexpected Finding about Elephants

D. A Long scientific Debate about Elephants

高三英语阅读理解中等难度题查看答案及解析

A recent study of ancient and modern elephants has  come up with the unexpected conclusion that the African elephant is divided into two distinct (不同的) species

The discovery was made by researchers at York and Harvard universities when they were examining the genetic relationship between the ancient woolly mammoth and mastodon to modern elephants—the Asian elephant, African forest elephant and African savanna elephant

Once they obtained DNA sequences (序列) from two fossils (化石)，mammoths and mastodons the team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths.

The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence of the two species took place around the time of the divergence of Asian elephants and woolly mammoths. This result amazed all the scientists.

There has long been debate in the scientific community that the two might be separate species but this is the most convincing scientific evidence so far that they are indeed different species.

Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3.5metres while the forest elephant has an average shoulder height of 2.5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA.

Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, “We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose .”

1.

One of the fossils studied by the researchers is that of ________.

A. the Asian elephant                  B. the forest elephant

C. the savanna elephant                D. the mastodon elephant

2.

The underlined word “divergence” in paragraph 4means “________”

A. evolution        B. exhibition       C. separation         D. examination

3.

The researcher’s conclusion was based on a study of the African elephant’s ____________

A. DNA           B. height          C. weight            D. population

4.

What were Alfred Roca’s words mainly about?

A. The conversation of African elephants.

B. The purpose of studying African elephants

C. The way to divide African elephants into two units

D. The reason for the distinction of African elephants

5.

Which of the following can be the best title for the passage?

A. Naturalist’s Belief about Elephants.        B. Amazing Experiment about Elephants

C. An Unexpected Finding about Elephants    D. A Long scientific Debate about Elephants

高三英语阅读理解中等难度题查看答案及解析

For those 1.have seen War for the Planet of the Apes, it’s easy to come to this conclusion---the movie isn’t about war or the planet, and it’s not 2.(necessary) even about the apes. The movie is about 3.(survive) and the choices we all make when one wants to survive, good or bad.

With a story that should have been full of conflict and violence, it takes a different approach. You may find 4.(you) exposed to small pockets of action. While recent sci-fi movies have become 5.(know) for their action and scenes, War for the Planet of the Apes has taken science fiction 6.a thoughtful and intelligent direction.

War for the Planet of the Apes may not be the action and monster film that you had in mind, 7.it’s the kind of film that will make you want to sit in silence in the theater for a few minutes after it ends, taking in 8.you’ve just witnessed.

The few movies that have that effect 9.(be) usually about humans, but this film enables people 10.(feel) that way about apes. And that is what makes it a masterpiece.

高三英语语法填空中等难度题查看答案及解析

Scientists have come to the conclusion_______ the temperature on Earth is getting higher and higher.

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

高三英语单项填空中等难度题查看答案及解析

The authorities will____ the case further before they can come to a conclusion about it .

A. look out   B. look up   C. look though   D. look into

高三英语单项填空中等难度题查看答案及解析

(2014·河北保定模拟)The authorities will________the case further before they can come to a conclusion about it.

A．look out　    B．look up

C．look through　    D．look into

高三英语单项填空中等难度题查看答案及解析

Scientists have come to the conclusion ___________ the temperature on Earth is getting higher and higher.

A. What　　 B. that

C. which　　 D. when

高三英语单项填空中等难度题查看答案及解析

If you analyze people’s actions, you will come to the conclusion that they all seek happiness. Every act is in fact a search for it, even if on the surface it doesn’t look so. Happiness is always the main target.

Going to the movies, eating in a restaurant and going to a party are all motivated by the desire to be happy. Who does not dream of a vacation in some fascinating locations, a new car, a new house, or the ideal match? All people daydream, and some even try to make their dream a reality. And why is that? In order to be happy!

Many people endanger themselves by climbing steep mountains, entering unexplored caves, or diving into the deep of the ocean in order to enjoy the few moments of happiness. A thief may steal because he loves the thrill of danger, or because he desires to have quick money to spend. He is actually looking for happiness, though in a perverted way.

Of course not all actions end in happiness. The motive is happiness, but the results do not always bring the desire. According to some spiritual traditions, we are spiritual beings in physical bodies. The spiritual part is always happy. Rather, it is happiness itself. But the physical body covers this happiness essence(本质). There is a constant desire to find out this happiness. This is the reason why happiness is constantly sought.

However, there is no need to search for happiness or to create it, or to have all kinds of outer experiences and actions in order to feel it. On the contrary, everything has to be dropped in order to experience it. Every technique, which helps to relax the mind and calm the rush of thoughts will lead to happiness.

1.From the first two paragraphs, we can learn that ________.

A. happiness is a daydream

B. it is very hard to analyze people’s actions

C. many things people do are to attain happiness

D. one should act carefully so as not to show his purpose

2.The underlined word “perverted” in Paragraph 3 most likely means ______.

A. illegal　　 B. unfair

C. cautious　　 D. difficult

3.According to the author, why do people seek happiness all the time?

A. All actions don’t result in the expected happiness.

B. There is little awareness of the nature of happiness.

C. One’s physical body is controlled by his spiritual part.

D. People are so greedy that it’s hard to satisfy their desires.

4.What is the author’s attitude towards seeking happiness?

A. Objective.　　 B. Favourable.

C. Doubtful.　　 D. Disapproving.

高三英语阅读理解困难题查看答案及解析

— They have discussed the problem for hours.

— Have they come to any_____?

A. end                              B. result                        C. conclusion              D. Opinion

高三英语单项填空中等难度题查看答案及解析