3. Michael Jackson ______ as “king of pop” wa...

3. Michael Jackson ______ as “king of pop” was announced dead on June 25th, ______ the world.

高三英语单项填空简单题查看答案及解析

Can people change their skin color without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin color.

The gene comes in two versions, one of which is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science.

Scientists have changed the color of a dark-striped zebrafish（斑马鱼） to uniform gold by inserting a version of the pigment (色素) gene into a young fish. As with humans, zebrafish skin color is determined by pigment cells, which contain melanin (黑色素). The number, size and darkness of melanin per pigment cell determine skin color.

It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation (变异) in the gene for melanin production. This results in less pigmented skin.

However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes.

Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun (太阳光紫外线), which can cause skin cancer.

But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.

Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin color, said Cheng.

The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin color without damaging it like chemical treatment did on Michael Jackson.

1.The passage mainly tells us that ________.

A. people can not change their skin color without any pain

B. the new discovery could lead to research into ways to change skin color safely

C. pop king Michael Jackson often changed his skin color as he liked

D. scientists have found out that people’s skin color is determined by the gene

2.It can be inferred from the passage that ________.

A. nowadays people who want to change their skin color have to suffer a lot from the damage caused by the chemical treatment

B. Europeans and Africans have the same gene

C. the new discovery could help to find medical treatments for skin cancer

D. there are two kinds of genes

3.Scientists have done an experiment on a dark-striped zebrafish in order to ________.

A. find the different genes of humans’

B. prove the humans’ skin color is determined by the pigment gene

C. find out the reason why the Africans’ skin color is dark

D. find out the ways of changing people’s skin color

4.The reason why Europeans are light-skinned is probably that _____

A. they are born light-skinned people

B. light-skinned Europeans have mutation in the gene for melanin production

C. they have fewer activities outside

D. they pay much attention to protecting their skin

5.The writer’s attitude towards the discovery is ________.

A. neutral B. negative        C. positive       D. unconcerned

高三英语阅读理解中等难度题查看答案及解析

Can people change their skin colour without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin colour. The gene comes in two versions, one of which is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science.

Scientists have changed the colour of a dark-striped zebra fish to uniform gold by inserting a version of the pigment (色素) gene into a young fish. As with humans, zebra fish skin colour is determined by pigment cells, which contain melanosomes (黑色素体). The number, size and darkness of melanosomes per pigment cell determines skin colour.

It appears that, like the golden zebra fish, light-skinned Europeans also have a mutation (突变)in the gene for melanosome production. This results in less pigmented skin. However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebra fish genes.

Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun, which can cause skin cancer. But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng. Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin colours, said Cheng.

The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment done on Michael Jackson.

1.According to the passage, scientists have found .

A. people living in northern latitudes need more sunlight

B. the reason why people change their skin colour

C. the reason why people get skin cancer

D. the gene that determines skin colour

2.We can infer from the passage that ________.

A. people like to change their skin colour

B. a mutation in the gene for melanosome production is different in human and zebra fish gene

C. people will be able to change their skin colour without chemical treatment in the future

D. skin cancer can be cured now

3.Which of the following is NOT mentioned according to the passage?

A. The version of the pigment gene of Asians and that of Africans are the same.

B. Scientists have succeeded in turning the colour of a dark-striped zebra fish into uniform gold.

C. Dark skin can protect bodies from utral-violet rays of the sun.

D. People like pop king Michael Jackson.

4.The passage is probably taken from __________.

A. a novel         B. a science report

C. a story book       D. a science fiction

高三英语阅读理解中等难度题查看答案及解析

Can people change their skin color without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin color.

The gene comes in two versions, one of which is found in 99 percent of Europeans. The other is found in 93 to 100 percent of Africans, researchers at Pennsylvania State University report in the latest issue of Science.

Scientists have changed the color of a dark-striped zebra-fish（斑马鱼） to uniform gold by inserting a version of the pigment (色素) gene into a young fish. As with humans, zebra-fish skin color is determined by pigment cells, which contain melanin (黑色素). The number, size and darkness of melanin per pigment cell determine skin color.

It appears that, like the golden zebra-fish, light-skinned Europeans also have a mutation (变异) in the gene for melanin production. This results in less pigmented skin.

However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebra-fish genes.

Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun (太阳光紫外线), which can cause skin cancer.

But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.

Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin color, said Cheng.

The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin color without damaging it like chemical treatment did on Michael Jackson.

1.The passage mainly tells us that ________.

A. people can not change their skin color without any pain

B. the new discovery could lead to research into ways to change skin color safely

C. pop king Michael Jackson often changed his skin color as he liked

D. scientists have found out that people’s skin color is determined by the gene

2.It can be inferred from the passage that _____________.

A. nowadays people who want to change their skin color have to suffer a lot from the damage caused by the chemical treatment

B. Europeans and Africans have the same gene

C. the new discovery could help to find medical treatments for skin cancer

D. there are two kinds of genes

3.Scientists have done an experiment on a dark-striped zebra-fish in order to _____________.

A. find the different genes of humans’

B. prove the humans’ skin color is determined by the pigment gene

C. find out the reason why the Africans’ skin color is dark

D. find out the ways of changing people’s skin color

4. The reason why Europeans are light-skinned is probably that _____________.

A. they are born light-skinned people

B. light-skinned Europeans have mutation in the gene for melanin production

C. they have fewer activities outside

D. they pay much attention to protecting their skin

5.The writer’s attitude towards the discovery is ______________.

A. neutral　　　　　　　　　 　　　　　 B. negative　　　　　　　　　 　　　　 C. positive　　　　　 D. unconcerned

高三英语阅读理解困难题查看答案及解析

Can people change their skin colour without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin colour.

The gene comes in two versions, one of which is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science.

Scientists have changed the colour of a dark-striped zebrafish to uniform gold by inserting a version of the pigment(色素) gene into a young fish. As with humans, zebrafish skin colour is determined by pigment cells, which contain melanosomes(黑色素). The number, size and darkness of melanosomes per pigment cell determines skin colour.

It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation(变异) in the gene for melanosome production. This results in less pigmented skin.

However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes.

Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays(紫外线) of the sun, which can cause skin cancer.

But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.

Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin colour, said Cheng.

The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment did on Michael Jackson.

1.What is the main idea of the passage?

A. People can’t change their skin colour without any pain.

B. The new discovery helped find ways to change skin colour safely.

C. Pop king Michael Jackson often changed his skin colour as he liked.

D. Scientists have found out that people’s skin colour is determined by the gene.

2.It can be inferred from the passage that ________.

A. nowadays changing the skin colour with the chemical treatment has bad effect

B. Europeans and Africans have the same genes

C. the new discovery could help to find medical treatments for skin cancer

D. there are two kinds of skin genes

3.Scientists have done an experiment on a dark-striped zebra fish in order to ________.

A. find the different genes of humans

B. prove the humans’ skin colour is determined by the pigment gene

C. find out the reason why the Africans’ skin colour is dark

D. find out the ways of changing people’s skin colour

4.Which of the following statements is TRUE?

A. Michael Jackson died of skin damage caused by chemical treatment.

B. American blacks produce more vitamin D with their skin than others.

C. The gene determining skin colour exists widely in whites, blacks and Asians.

D. The melanosomes in the skin of blacks usually cause skin cancer more often.

高三英语阅读理解中等难度题查看答案及解析

Can people change their skin color without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin color.

The gene comes in two versions, one of which is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science.

Scientists have changed the color of a dark-striped zebrafish（斑马鱼） to uniform gold by inserting a version of the pigment (色素) gene into a young fish. As with humans, zebrafish skin color is determined by pigment cells, which contain melanin (黑色素). The number, size and darkness of melanin per pigment cell determine skin color.

It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation (变异) in the gene for melanin production. This results in less pigmented skin.

However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes.

Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun (太阳光紫外线), which can cause skin cancer.

But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.

Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin color, said Cheng.

The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin color without damaging it like chemical treatment did on Michael Jackson.

1. The passage mainly tells us that ________.

2. It can be inferred from the passage that ________.

3.Scientists have done an experiment on a dark-striped zebrafish in order to ________.

4.The reason why Europeans are light-skinned is probably that _____

5.The writer’s attitude towards the discovery is ________.

高三英语阅读理解中等难度题查看答案及解析

Can people change their skin colour without suffering like pop king Michael Jackson? Perhaps yes．Scientists have found the gene that determines skin colour．

The gene comes in two versions, one of which is found in 99 per cent of Europeans．The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science．

Scientists have changed the colour of a dark-striped zebrafish to uniform gold by inserting a version of the pigment(色素) gene into a young fish．As with humans, zebrafish skin colour is determined by pigment cells, which contain melanosomes(黑色素)．The number, size and darkness of melanosomes per pigment cell determines skin colour．

It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation(变异) in the gene for melanosome production．This results in less pigmented skin．

However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes．

Humans acquired dark skin in Africa about 1．5 million years ago to protect bodies from ultra-violet rays(紫外线) of the sun, which can cause skin cancer．

But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D．So the related gene changes, according to Cheng．

Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin colour, said Cheng．

The new discovery could lead to medical treatments for skin cancer．It also could lead to research into ways to change skin colour without damaging it like chemical treatment did on Michael Jackson．

1.What is the main idea of the passage?

A． People can’t change their skin colour without any pain．

B． The new discovery helped find ways to change skin colour safely．

C． Pop king Michael Jackson often changed his skin colour as he liked．

D． Scientists have found out that people’s skin colour is determined by the gene．

2.It can be inferred from the passage that ________．

A． nowadays changing the skin colour with the chemical treatment has bad effect

B． Europeans and Africans have the same genes

C． the new discovery could help to find medical treatments for skin cancer

D． there are two kinds of skin genes

3.Scientists have done an experiment on a dark-striped zebra fish in order to ________．

A． find the different genes of humans

B． prove the humans’ skin colour is determined by the pigment gene

C． find out the reason why the Africans’ skin colour is dark

D． find out the ways of changing people’s skin colour

4.Which of the following statements is TRUE?

A． Michael Jackson died of skin damage caused by chemical treatment．

B． American blacks produce more vitamin D with their skin than others．

C． The gene determining skin colour exists widely in whites, blacks and Asians．

D． The melanosomes in the skin of blacks usually cause skin cancer more often．

高三英语阅读理解中等难度题查看答案及解析

LOS ANGELES,July8（Xinhua）——Michael Jackson's burial remained a mystery as part of his brain is being held by the coroner's （验尸官）office for tests, an official said.

The late superstar's body was transported to an undisclosed place Tuesday after a star-crowded public memorial service at the Staples Center in downtown Los Angeles. It is still unclear where and when the singer's body will be buried.

Ed Winter, assistant chief coroner said families often wait for mass of brain part to be returned before permitted burial. He said he understood no burial would take place immediately although he was not aware of instructions from the Jackson family. The coroner's office released a death certificate(证明) for Jackson Tuesday that listed the cause of death as "delay."

Michael Jackson，the King of Pop，was born on August 29，1958，and died on June 25，2009 after being rushed to a Los Angeles hospital from his rented house when his heart stopped functioning properly. A police investigation into his death is focusing on the possibility that his death was caused by a medication overdose（过量）, including possibly Diprivan, a powerful sedative (镇静剂)usually used for general anesthesia（麻醉）.

68. Why hasn’t Jackson’s burial been held? ______

A. The place to bury him isn’t sure.

B. His family didn’t give instructions

C. Part of his body is still being tested

D. The time to bury him is still being  discusseded

69. The direct cause of the super popstar’s death is ______

A. that his heart stopped beating

B. due to a powerful sedative used for anesthesia

C. overdose of some medicine

D. the delay of being rushed to the hospital

70. Which statement is true? ______

A. No one can bury the body of one’s beloved without the government’s instructions.

B. Many popstars were involved in Jackson’s memorial service.

C. The police doubted whether Jackson was murdered.

D. Jackson died at home.

71. We can infer from the passage that______

A. The burial can’t happen without a death certificate.

B. Jackson’s family are skeptical (怀疑的)about Jackson’s death

C. Jackson was possibly murdered by his doctor

D. The brain part of all people’s body must be transported to be tested

高三英语阅读理解简单题查看答案及解析

As for diet, Michael Jackson chooses vegetables and fruit in ______ to any kind of meat.

A. comparison                  B. preference                   C. control                   D. advantage

高三英语单项填空中等难度题查看答案及解析

As for diet, Michael Jackson chooses vegetables and fruit in ___________to any kind of meat.

A. comparison                B. preference                         C. control                          D. advantage

高三英语单项填空中等难度题查看答案及解析