The official ________ to say more about the p...

The official ________ to say more about the plan, so the details of it remain secret.

A．agreed　     B．declined

C．attempted　     D．declared

高三英语单项填空中等难度题查看答案及解析

Experts say farmers will need to produce about 70 percent more food by the middle of the century. They predict that 9 billion people will need to be fed worldwide by 2050. The prediction means experts will need to develop more effective farming methods that cause less harm to the environment to produce more food. Experts say living things called bacteria could help achieve that goal. A bacterium is an organism.It is so small that it can be seen only with a microscope.

Researchers are finding extremely small organisms in the ground. One gram of soil contains between 100 million and one billion bacteria. Bacteria are taking part in a healthy ex- change with the plants that share the soil. Around plant roots, bacteria change chemicals in the air and soil into food for the plants. The bacteria include the material known as fungi(真菌). Some bacteria act as bodyguards. They produce anti-bodies and other chemicals to fight harmful bacteria.

Plants make sugar through a process called photosynthesis (光合作用).This happens when a plant receiving light changes water and carbon dioxide into food. Much of the sugar is pumped down through the roots. There, it is turned into sugar-based food and released into the soil. That is done to get bacteria to help the plants grow better. Some of the organisms turn chemicals in the air and soil into food that the plants can eat.

The biosciences company Novozymes already sells one kind of fungi. It has found a way to produce it in very large quantities and offer it to farmers as.a bio-pesticide (生物农药).A bio-pesticide protects crops from animals and bacteria. If so, farmers can harvest more crops.

1.What do the experts’ statistics in paragraph 1 show?

A.Bacteria have a good effect on farming.

B.There will be more harmful bacteria in 2050.

C.There's no need to worry about the problem of future food.

D.More food will be needed to feed more people in the future.

2.What's the connection between plants and bacteria according to paragraph 3?

A.Bacteria can't live without plants. B.Plants get benefit from bacteria .

C.They make sugar cooperatively. D.They compete for more sunshine.

3.What does Novozymes do?

A.It sells crops and animals.

B.It beautifies the environment.

C.It provides farmers with materials free of charge.

D.It produces fungi as a bio-pesticide.

4.What is the best title for the text?

A.Crops of High Quality Need Developing

B.Bacteria May Help Meet Food Needs of the Future

C.A Large Quantity of Farmland Should Be Improved

D.Diseases and Pests Can Be Controlled in the Future

高三英语阅读理解中等难度题查看答案及解析

Premier Li Keqiang officially ______ the plan to develop the Bay Area in his government work report delivered at the start of the National People’s Congress session in March.

A. laid out　　 B. laid off

C. laid down　　 D. laid up

高三英语单项填空困难题查看答案及解析

-- Mr President , do you plan to educate your two daughters to be officials ?

-- To tell your the truth , I hope they can do whatever _____ their interests.

A. fits　 B. matches　 C. suits　 D. needs

高三英语单项填空中等难度题查看答案及解析

He says French people are _____ about the future of their country, so it’s not absurd to discuss how to deal with the subject.

A.anxious B.ashamed C.weak D.patient

高三英语单项填空中等难度题查看答案及解析

________about the economical crisis that he decided to look for more information about it．

A．So curious he was                        B．So curious was he

C．Such curious he was                      D．Such curious was he

高三英语单项填空中等难度题查看答案及解析

Haitian officials said it was the strongest earthquake to ____the country in more than 200 years.

A. happen   B. strike       C. hit      D. occur

高三英语单项填空简单题查看答案及解析

B

South Korea has offered about 10,000 tons of corn to North Korea, in what would be the first official aid to its hungry neighbor for almost two years．The South also offered 20 tons of milk powder and medicine for children, pregnant women and other vulnerable people, its unification ministry said．The proposed shipmen would be through the Red Cross．It would be the first official one since a conservative government came to power in Seoul in February 2008．The South Korean administration of President Lee Myung-bak has linked major assistance to progress on denuclearisation．

However, after months of bitter hostility, the communist North began making peace overtures（提议，提案） to the South in recent months．Persistent media reports have also said the two sides have held preliminary talks about a possible summit．

The amount of food aid on offer is tiny relative to the needs in what the United Nations recently described as the famine-hit North．A third of North Korean women and young children are malnourished（营养不良的） and the country will run short of almost 1．8 million tons of food this year, the United Nations World Food Program said in a report last month．The unification ministry admitted it was far less than needed but said the North must mend relations before shipments could be increased．

"We cannot say 10,000 tons is sufficient in view of North Korea's food shortage and other conditions," said ministry spokeswoman Lee Jong-Joo．"We are providing purely humanitarian aid," she said．

"There is no change in our position that massive food aid depends on how relations between the two Koreas develop," she said．North Korea has yet to respond to the latest offer, made through the Red Cross．But Yonhap news agency said it was likely co-ordinated in advance before the announcement．

Last year the South offered 50,000 tons of corn, but the North rejected the shipment amid high tensions．

North Korea has relied on food aid from China, South Korea and aid agencies to feed millions of its people since a famine in the 1990s resulted in the deaths of hundreds of thousands．

50．How would North Korea be offered about 10,000 tons of corn from South Korea?

A．North Korea would buy corn from South Korea．

B．North Korea would exchange with South Korea．

C．The offer would be through the Red Sea．．

D．The offer would be through an international organization

51．About whether South Korea would go on offering assistance, we can infer from the passage that________________．

A．they would go on without any condition

B．they would go on if there was a famine in North Korea

C．it depended on how their relation would develop

D．it depended on whether North Korea needed it

52．How did North Korea survive since a famine in the 1990s?

A．They depended on the international aid from all other countries

B．They developed their agriculture to increase the production

C．They expanded the agricultural land

D．They relied on food aid from China, South Korea and aid agencies

53．What is the main idea of the passage?

A． It’s about the aid to South Korea from North Korea

B．It tells about the help between South Korea and North Korea

C．It’s about the help to the Poor

D．It tells about an action of the Red Cross

高三英语阅读理解简单题查看答案及解析

听下面一段较长对话，回答以下小题。

1.What does the man say about the closest gas station?

A. It costs more. B. It charges less. C. It offers good service.

2.How far is the cheapest gas station?

A. A few blocks away. B. About two miles away. C. About five-minute ride away.

3.What should the woman do at the first traffic lights?

A. Take a right turn. B. Walk straight. C. Turn left.

高三英语长对话困难题查看答案及解析

Health officials have tried to raise _______ about the H1N1 flu among all people.

高三英语单项填空中等难度题查看答案及解析