Tom ________ have come in person．He came such...

Tom ________ have come in person．He came such a long way just to tell us me result．

A．mustn’t                B．needn’t               C．wouldn’t                 D．couldn’t

高三英语单项填空简单题查看答案及解析

- Have you known each other for long?

- Not really. ________ we started to work in this school.

A. Just after       B. Just when        C. Ever since        D. Just before

高三英语单项填空中等难度题查看答案及解析

Chinese researchers say they have come up with a simple way to find out a person’s biological age —how much the body has aged physically – through a urine (尿) test.

Their findings will help researchers conduct numbers of ageing studies and even predict a person’s risk of age-related diseases, according to a paper published in the journal Frontiers in Ageing Neuroscience.

Another paper by researchers at the Beijing Hospital and the West China Hospital in Chengdu, Sichuan province, said on Tuesday that people aged at different rates due to changes in their genetic make-up and their environment.

Chronological age – which is based on one’s birth date —was an inaccurate measure of biological age so a more accurate method was needed, the team said.

Ageing is driven by the lifelong gradual accumulation of a broad variety of molecular (分子) faults in the body’s cells. The team said they had identified a matter —8-oxoGsn — that indicated increases in oxidative (氧化性) damage in urine as people’s bodies aged.

Cai Jianping, a co-author at the Beijing Hospital, said: “As we age, we suffer increasing oxidative damage and so the levels of oxidative matters increase in our body.” The team tested the levels of 8-oxoGsn in urine samples from 1,228 Chinese people aged two to 90 and concluded the marker helped accurately determine the stage of biological ageing in adults.

They had previously found that 8-oxoGsn levels also increased with age in the urine of animals such as mice.

The team has also developed a rapid analysis technique called ultra-high-performance liquid chromatography, which can process up to 10 urine samples an hour, according to the study.

1.Scientifically speaking, by what does a doctor judge the stage of a person getting old?

A. His biological age.　　 B. His condition.

C. His psychology.　　 D. His chronological age.

2.What are the outer factors the speed of one’s ageing physically depend on?

A. One’s birth date.

B. The increases in oxidative damage in urine.

C. The accumulation of various molecular faults in the body’s cells.

D. The changes in their genetic make-up and their environment.

3.Which can take the place of the underlined word “marker” in the sixth paragraph?

A. Molecular faults.　　 B. 8-oxoGsn.

C. Oxidative damage.　　 D. Stage of biological ageing in adults.

4.What is the passage about?

A. Why people are ageing.

B. How to delay people’s ageing physically.

C. A rapid method with which to judge how much people are aging physically.

D. What determines the stage of people’s ageing physically.

高三英语阅读理解困难题查看答案及解析

Chinese researchers say they have come up with a simple way to find out a person’s biological age —how much the body has aged physically – through a urine (尿) test.

Their findings will help researchers conduct numbers of ageing studies and even predict a person’s risk of age-related diseases, according to a paper published in the journal Frontiers in Ageing Neuroscience.

Another paper by researchers at the Beijing Hospital and the West China Hospital in Chengdu, Sichuan province, said on Tuesday that people aged at different rates due to changes in their genetic make-up and their environment.

Chronological age – which is based on one’s birth date —was an inaccurate measure of biological age so a more accurate method was needed, the team said.

Ageing is driven by the lifelong gradual accumulation of a broad variety of molecular (分子) faults in the body’s cells. The team said they had identified a matter —8-oxoGsn — that indicated increases in oxidative (氧化性) damage in urine as people’s bodies aged.

Cai Jianping, a co-author at the Beijing Hospital, said: “As we age, we suffer increasing oxidative damage and so the levels of oxidative matters increase in our body.” The team tested the levels of 8-oxoGsn in urine samples from 1,228 Chinese people aged two to 90 and concluded the marker helped accurately determine the stage of biological ageing in adults.

They had previously found that 8-oxoGsn levels also increased with age in the urine of animals such as mice.

The team has also developed a rapid analysis technique called ultra-high-performance liquid chromatography, which can process up to 10 urine samples an hour, according to the study.

1.Scientifically speaking, by what does a doctor judge the stage of a person getting old?

A. His condition.　　 B. His biological age.

C. His psychology.　　 D. His chronological age.

2.What are the outer factors the speed of one’s ageing physically depend on?

A. One’s birth date.

B. The increases in oxidative damage in urine.

C. The changes in their genetic make-up and their environment.

D. The accumulation of various molecular faults in the body’s cells.

3.Which can take the place of the underlined word “marker” in the sixth paragraph?

A. 8-oxoGsn.

B. Molecular faults.

C. Oxidative damage.

D. Stage of biological ageing in adults.

4.What is the passage about?

A. Why people are ageing.

B. How to delay people’s ageing physically.

C. What determines the stage of people’s ageing physically.

D. A rapid method with which to judge how much people are aging physically.

高三英语阅读理解中等难度题查看答案及解析

— How long have you known John?

— Since he ______ to our class.

高三英语单项填空中等难度题查看答案及解析

Astronauts’ meals have come a long way from the free-dried powders and semi—liquid pastes of decades ago，now US scientists want to grow vegetables in mini—greenhouses on the moon．

Scientists say they are looking forward to a time when residents of future lunar or even Martian outsteps will be able to dine on fresh vegetables．Paragon Space Development Corporation has unveiled what it called the first step toward growing flowers——and eventually food on the moon．

This is a sealed greenhouse that looks like a bell jar encased in a 46-cm triangular aluminiumframe．It is designed to safely land a laboratory plant on the lunar surface，and protect it while it grows．

The miniature greenhouse is to be launched into space by Odyssey Moon Ltd, a participant in the Google Lunar X Prize. This competition offers $21 million to any entrant who can launch, land and operate a rover on the lunar surface.

Paragon officials say future testing of the “Lunar Oasis” will be driven by Odyssey’s flight Schedule, which will not happen until 2012 at the earliest．

When it does lift off the greenhouse will contain the seeds of Brassica, a hardy plant related to Brussels sprouts and cabbage. Because Brassica goes from seed to flower in just 14 days, it can complete its life cycle in a single lunar night.

“Colonizing the Moon or Mars seems so far away，but it is important that we do this research now. ”Paragon president Jane Poynter said．

“It takes a long time to get a lot of research, and to get integrated, reliable efficient systems before colonists move in. ”she said．

1.The article is written mainly to__________．

A. predict the astronauts’ meals in the future

B. introduce an experiment “Lunar Oasis’’

C. tell us the future development of astronomy

D. focus on the human’s great progress

2.The article implies that__________．

A. astronauts can grow flowers in space at present

B. Paragon and NASA will carry out the test separately

C. Lunar Oasis is a series of experiments carried out in space

D. the earliest testing of the Lunar Oasis may be in 2012

3.The underlined word “colonists” in the last paragraph probably has the meaning of______．

A. plants    B. wild beasts    C. human beings      D. scientists

4.The seeds of Brassica will be contained in the greenhouse mainly because _________.

A. their life cycle is much shorter

B. they are more nutritious than other food

C. they are related to Brussels sprouts and cabbage

D. they are very delicious

高三英语阅读理解简单题查看答案及解析

Astronauts’ meals have come a long way from the free-dried powders and semi-liquid pastes of decades ago，now US scientists want to grow vegetables in mini-greenhouses on the moon．

Scientists say they are looking forward to a time when residents of future lunar or even Martian outsteps will be able to dine on fresh vegetables．Paragon Space Development Corporation has unveiled what it called the first step toward growing flowers——and eventually food—on the moon.

This is a sealed greenhouse that looks like a bell jar encased in a 46-cm triangular aluminium frame(三角铝框架)．It is designed to safely land a laboratory plant on the lunar surface，and protect it while it grows．

The miniature greenhouse is to be launched into space by Odyssey Moon Ltd, a participant in the Google Lunar X Prize. This competition offers $20 million to any entrant(参加者) who can launch，land and operate a rover（漫游）on the lunar surface.

Paragon officials say future testing of the“Lunar Oasis”will be driven by Odyssey’s flight schedule，which will not happen until 2012 at the earliest．

When it does lift off the greehouse will contain the seeds of Brassica, a hardy plant related to Brussels sprouts and cabbage．Because Brassica goes from seed to flower in just 14 days，it can complete its life cycle in a single lunar night

“Colonizing the Moon or Mars seems so far away，but it is important that we do this research now，” Paragon president Jane Poynter said．

“It takes a long time to get a lot of research，and to get integrated，reliable efficient systems before colonists move in．”she said．

1.The article is written mainly to _________.

A. predict the astronauts’meals in the future

B. introduce an experiment“Lunar Oasis’’

C. tell us the future development of astronomy

D. focus on the human’s great progress

2.The article implies that __________.

A. astronauts ean grow flowers in space at present

B. Paragon and NASA will carry out the test separately

C. Lunar Oasis is a series of experiments carried out in space

D. the earliest testing of the Lunar Oasis may be in 2012

3.The underlined word “colonists”in the last paragraph probably has the meaning of _______.

A. plants    B. wild beasts    C. human beings   D. scientists

4.The seeds of Brassica will be contained in the greenhouse mainly because _______.

A. their life cycle is much shorter

B. they are more nutritious than other food

C. they are related to Brussels sporouts and cabbage

D. they are very delicious

第一节：短文改错（共10小题；每小题1分，满分10分）

If someone asks you how you can make you always 5._______

happy, you will perhaps find rather difficult to give him   6._______

a proper answer．Did you remember the old saying“No    7._______

human being can really happy who is not giving or trying    8._______

to give happiness to others”? If you will always think of  9._______

taking more from others and give them less，you won’t be   10._______

able to have happiness in your life even you are very rich. 11._______

Here’s an article for you. If each of you follow it, there 12._______

will be all end of many unhappy days of yours．So you should    13._______

learn to give up your own interests when necessarily to do so.  14._______

高三英语阅读理解中等难度题查看答案及解析

________out after a long walk ,Tom called and said he couldn’t come to the party.

A．Having worn       B．Being worn        C．To wear           D．Worn

高三英语单项填空中等难度题查看答案及解析

---Do you have anyone particular in _____ for the job?

---In my opinion, Tom is the right person.

A. heart             B. head        C. mind         D. brain

高三英语单项填空中等难度题查看答案及解析

—Do you have anybody particular in ______ for the job？

—In my opinion, Tom is the right person..

高三英语单项填空简单题查看答案及解析