The wide spread of super hybrid rice around t...

The wide spread of super hybrid rice around the world ______ the lives of millions and millions of people suffering from hunger to a great level.

高三英语单项填空中等难度题查看答案及解析

The COVID-19 pandemic has spread far and wide. Because of this, countries around the world have carried out containment measures to help stop the virus in its tracks. As more and more people stay inside to stay safe, the outside world seems to have become much quieter. In fact, scientists have seen this change in their research, too.

Seismologists—scientists who study earthquakes—have heard a lot less seismic (地震的) noise recently. Seismic noise is made from vibrations (震动) in the ground that are caused by things like ocean waves and human activity, such as construction work and traffic.

Thomas Lecocq, a scientist at the Royal Observatory of Belgium, located in Brussels, was the first to notice this phenomenon. According to Lecocq, the amount of seismic noise in Brussels has been reduced by about 30 to 50 percent since mid-March. Interestingly enough, this is around the same time Belgium started its containment measures.

Because of this reduction in background noise, scientists like Lecocq have been able to pick up on smaller earthquakes that some seismic stations—like the one in Brussels—wouldn’t have been able to before.

This phenomenon isn’t unique to Brussels, though. Once Lecocq shared his findings online, seismologists from all over the world echoed similar findings. Celeste Labedz, a graduate student at the California Institute of Technology, mentioned in a tweet that Los Angeles also experienced less background noise. “The drop is seriously wild,” she wrote. Researchers from the UK, France and New Zealand also noted a decrease in background noise since containment measures were put in place.

These global efforts to contain the COVID-19 virus have helped to shed light on seismic activity that may have gone unnoticed. It also shows that people are listening to health officials and following lockdown guidelines.

1.What did seismologists find out recently?

A.More smaller earthquakes are likely to happen.

B.Less seismic activity has been detected recently.

C.Reduced seismic vibration makes Earth quieter.

D.Seismic noise is caused by vibrations underground.

2.What can we learn from the text?

A.More seismic noise is being picked up.

B.More data on smaller earthquakes is being collected.

C.Scientists will shift their focus to smaller earthquakes.

D.Future big earthquakes can be more accurately predicted.

3.What does the underlined word “echoed” in paragraph 5 mean?

A.Questioned. B.Demanded.

C.Explored. D.Repeated.

4.What can we conclude from the last two paragraphs?

A.The drop in seismic noise is unique to Europe.

B.Seismic noise is mainly caused by human activity.

C.Many seismologists wanted tighter restrictions for their research.

D.The phenomenon proved that people are practicing social distancing.

高三英语阅读理解中等难度题查看答案及解析

阅读理解

The spread of Western eating habits around the world is bad for human health and the environment. These findings come from a new report in the journal Nature.

David Tilman, a professor of ecology at the University of Minnesota, America, examined information from 100 countries to identify what people ate and how a diet affected health. He noted a movement beginning in the 1960s. He found that as nations industrialized (工业化), population increased and earnings rose, more people began to adopt what has been called the Western diet.

The Western diet is high in sugar, fat, oil and meat. By eating these foods, people began to get fatter and sicker. David Tilman says overweight people are at greater risk of noninfectious diseases like diabetes (糖尿病) and heart disease.

Unfortunately when people become industrialized, if they adopt this Western diet, they are going to have these health problems, especially in developing countries in Asia. China is an example where the number of diabetes cases has been jumping from less than one percent to 10 percent of the population as they began to industrialize over a 20­year period. And that is happening all across the world, in Mexico, in Nigeria and so on.

And, a diet bad for human beings is also bad for the environment. As the world's population grows, more forests and tropical (热带的) areas will become farmlands for crops or grasslands for cattle. We are likely to have more greenhouse gas in the future from agriculture than that coming out of all forms of transportation right now.

Mr. Tilman calls the link between the diet, the environment and human health, “a trilemma” — a problem offering a difficult choice. He says one possible solution is leaving the Western diet behind.

1.According to the passage, more greenhouse gas might be given off in the future from ________.

A．transportation　　　　　　 B．developing countries

C．agriculture　　　　　　　　 D．developed countries

2.David Tilman believes that ________.

A．the diet, the environment and human health are closely connected

B．the Western diet is the only choice as the nation industrializes

C．people in tropical areas are more likely to have heart disease

D．traditional diets are more balanced than the Western diet

3.We can infer from the passage that ________.

A．Nigeria has the largest number of diabetes cases

B．overweight people are at higher risk of infectious diseases

C．the examined information comes from developing countries

D．industrialization contributes to the spread of the Western diet

4.The main purpose of the passage is to　 ________.

A．call on us to protect the environment

B．warn us of the danger of the Western diet

C．remind us of the importance of health

D．advise us to have a balanced diet

高三英语阅读理解中等难度题查看答案及解析

The third﹣generation hybrid rice which was developed by Yuan Longping, the "father of hybrid rice",and his team underwent its first public yield（产量）monitoring from Monday to Tuesday and achieved high output. The final yield of the tested variety, G3﹣1S/P19, came to 1046.3 kg per mu （about 667 square meters）, based on two plots of land in Qingzhu Village under the city of Hengyang in central China's Hunan Province.

"Some previous high﹣yielding hybrid rice varieties in China took 160 to even 180 days from sowing to harvesting, while the figure was shortened to around 125 days for the new variety. This is one of the most important characteristics of the third﹣generation hybrid rice that can reduce the use of pesticides and fertilizers, thus reducing cost and improving production efficiency. " said Qian Qian, the deputy director of the China National Rice Research Institute.

Unlike the previous two generations that required a large amount of water and fertilizers as well as demanding growing conditions and technological support, the third﹣generation hybrid rice is easier to be cultivated by ordinary farmers. So the soil, altitude and climate of the test site were not "ideal conditions" carefully selected beforehand but were close to the paddies of ordinary farmers.

Nowadays, China's average yield of rice is about 500 kg per mu. Ordinary farmers can produce 600kg to 700 kg of rice per mu by growing some excellent second﹣generation hybrid rice varieties. However, under the same planting conditions and environment, the yield of the third﹣generation hybrid rice could reach 800 kg per mu. China now feeds around 20 percent of the world's population with less than 9 percent of the world's arable（可耕种的）land.

At present, Yuan's team has nine third﹣generation hybrid rice combinations under trial, which are expected to achieve commercial seed production in the following three to four years and hope to apply the technology into the research of sea rice. The third﹣generation hybrid rice has the comprehensive strength to promote a greener and more sustainable development of China's rice production with higher quality and yield.

1.What feature of the new hybrid rice does Qian Qian mainly talk about？

A.It saves a lot more water.

B.It achieves a higher yield.

C.It saves much more farmland.

D.It has a shorter growing period.

2.Why is the new hybrid rice not tested in ideal areas？

A.The ordinary farmers master planting technology.

B.The researchers want to reduce the experiment cost.

C.The growing conditions the new hybrid rice needs are simple.

D.The previous rice farming provides researchers with experience.

3.What is the fourth paragraph mainly about？

A.The high output of the third﹣generation hybrid rice.

B.The promising future of the new hybrid rice variety.

C.The advanced technology of the research on hybrid rice.

D.The differences between the three hybrid rice varieties.

4.Which one could be the best title of the text？

A.The Development of China's Rice

B.The Contribution of the Great Scientist

C.The High Yield of the New Hybrid Rice

D.The Way to Feed the World's Population

高三英语阅读理解中等难度题查看答案及解析

请阅读下面文字，并按照要求用英语写一篇150词左右的文章。

Yuan Longping, 90, known as the “father of hybrid rice”，plays a crucial role in helping China achieve food security. Every morning what he does first is go to the field and works as a “farmer”. When asked how much his shirt was, he told the reporter that it was 35 yuan.

Deng Jiaxian, the Founding Father of China’s A-Bomb and H-Bomb, was the founder and promoter of China’s nuclear weapon cause. However, it was not until he died that his parents and many of his friends realized that he had produced such extraordinary achievements.

Li Junxian, without whom it would have been impossible for us to send the rocket into space, is one of the academicians of the Chinese Academy of Engineering. In 2018, this 90-year-old party member, donated 3 million yuan to set up the Doctor Innovation Fund and the Hardship Assistance Fund.

（写作内容）

1. 用约30个词概括上述信息的主要内容；

2. 分析上述国家功臣身上有哪些值得我们学习的优良品质；

3. 谈谈其中某一品质对你的启发，并举例说明。

（写作要求）

1. 写作过程中不能直接引用原文语句；

2. 作文中不能出现真实姓名和学校名称；

3. 不必写标题。

（评分标准）

内容完整，语言规范，语篇连贯，词数适当。

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高三英语读写任务中等难度题查看答案及解析

Do you know that Yuan Longping is known as ______ father of hybrid rice (杂交水稻)?

A．/                B．the               C．a                D．an

高三英语单项填空简单题查看答案及解析

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

As the COVID-19 crisis spreads around the world, families worldwide are having a hard time 1. (adapt) to unexpected changes in their daily routines. Health officials point out that the psychological state of children needs special attention. The stress and uncertainty 2.(associate)with the pandemic (流行病) and social distancing policies potentially have significant 3.(affect) on their mental well-being.

4.kids respond to stressful events is influenced by their temperament (性格) . Anxious　 and fearful kids might be especially worried about getting sick or about family members getting sick. Very sociable kids may suffer more 5.social isolation than others do.

6.(help) their kids deal with stress, parents should respond to their kids' 7.(react) in a supportive way, listen to their concerns, and give them extra time and attention. Parents should also try to engage their kids in 8.(create) activities, like playing and drawing. Social contact is vital to our mental health, 9.parents are supposed to help kids stay in contact with friends and family members through telephone or online channels.

While nobody knows for sure when all of these will be over, we have to find more tools and skills for keeping up our 10.(spirit) and our resilience.

高三英语语法填空中等难度题查看答案及解析

What a beautiful sight! Wild flowers of different colors spread all over the hills and around the lake, _______ to the beauty of the valley.

A. to add      B. being added     C. adding      D. added

高三英语单项填空中等难度题查看答案及解析

The Greenbelt, a wide belt of open land around the cities and towns of the San Francisco Bay Area, includes about 3.75 million of the Bay Area’s 4.5 million acres. The Bay Area Greenbelt is one of the largest areas of open land in any U.S. urban area. Open land is land that has few buildings and lots of natural areas. The Greenbelt’s open land includes parks, forests, beaches, and more than 8,500 farms.

What are the advantages of the Greenbelt?

The Greenbelt has many advantages for people in the Bay Area, which include:

l walking and biking areas close to the cities and towns;

l places for wild plants and animals;

l cleaner air and water;

l income from farms.

Is the Greenbelt in danger?

Five hundred seventy thousand acres of the Greenbelt are in danger. There are builders who want to build suburbs on them. If those acres become suburbs, many things will change:

l the urban and suburban area will almost double;

l many farms will disappear;

l traffic will become worse;

l the air will become dirtier.

What is Greenbelt Alliance (联盟)?

Greenbelt Alliance, an organization that saves land in the San Francisco Bay Area, works alone and with other groups to save the Greenbelt in four ways:

1. Try to persuade people to build new buildings on land that is already urban, not on open land.

2. Make sure that the city and town governments are all making plans to save the Greenbelt.

3. Help Bay Area towns and cities to buy pieces of open land to make into natural areas.

4. Teach people in the Bay Area why the Greenbelt is important and what they can do to help save it.

1.What can we learn about the Greenbelt from the first paragraph?

A．The Greenbelt is the largest open land in the United States.

B．The Greenbelt covers much more than half of the Bay Area.

C．There are few farms on the open land of the Greenbelt.

D．There are more than 8,500 natural areas on the Greenbelt.

2.One of the advantages of the Greenbelt for people in the Bay Area is __________.

A．convenience for exercise                 B．income from sightseeing

C．cleaner city streets                      D．more plants and animals

3.The Greenbelt is in danger because __________.

A．traffic is getting worse

B．some plans to build suburbs on it

C．the suburban area has doubled

D．pollution is becoming serious

4.Which of the following is TRUE about Greenbelt Alliance?

A．It builds new buildings on open land.

B．It buys large open land for the Bay Area.

C．It educates people how to save the Greenbelt.

D．It helps the city governments make plans.

高三英语阅读理解中等难度题查看答案及解析

Most of the world’s rice is grown in the tropical _______.

A. section        B. location        C. district          D. zone

高三英语单项填空中等难度题查看答案及解析