【推荐1】阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

“Failing to open curtains fully makes people more likely to get sick”,     1     new study suggests. It found sunlight kills disease-causing bacteria     2     live in dust, while darker conditions let them thrive (繁殖). The findings     3     (publish) in the journal Microbiome.

Researchers     4     (warn) the problem also affects windowless offices. Study leader Dr. Ashkaan Fahimipour said: “Humans spend most of their time indoors, where dust carries bacteria     5     ( make) us sick.

“Therefore, it’s important     6     (understand) how the buildings we live influence dust eco-systems and how this could     7     (serious) affect our health.”

His team at the University of Oregon chose 11 small rooms and allowed in     8     (differ) levels of sunlight. After 90 days, dark rooms had double the number of bacteria able to reproduce. Fahimipour added: “We hope that with     9     (far) understanding we can design access to daylight in     10     (build) schools, offices, hospitals and homes in ways that reduce the risk of dust-borne infections.”

【推荐2】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。

Overpopulation is not    1     (simple)a function of the size or density of the population, but rather the number of individuals    2     (compare)to the resources needed for survival or well-being. Overpopulation can    3     (determine) using the ratio(比率) of population to available resources. If a given environment has    4    population of ten, but there is food or drinking water enough for only nine, then that environment is overpopulated. Overpopulation can result from an increase in births or from an increase in    5     (immigrate) . Overpopulation is also related to issues of birth control, with some nations taking strict measures in order to reduce birth rates, while opposition to birth control has been cited as a factor contributing to overpopulation and poverty. On a global scale, since the industrial revolution, food production    6     (grow)faster than human population.     7    , there are other changes impacting earth's ability    8     (function) as a suitable habitat for human beings. Nevertheless, almost all growth will take place in the less developed regions,     9    today’s 4.3 billion population is expected to increase    10    6.8 billion in 2050.

【推荐3】阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写 1 个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

It seems obvious now     1     we acquire knowledge and understanding. To start with, we need questions. Then, to find the answers, we observe the world around us and study the facts. After that, we consider possible answers and test each to find the right ones.     2     today we are more used to looking for answers from the Internet, modern scientists and thinkers are still solving the world’s problems with this type of     3     (analyze) —luckily for us.

【推荐1】阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

As the planet has been getting warmer, ice near the North and South Poles has started to melt. Recent     1     (study) show that the ice in Greenland has started to melt more quickly. A new research paper, which     2    (publish) in the magazine Nature, indicates that 9,103 gigatons of ice have melted in Greenland     3     1900. The amount of ice     4    lose) doubled from 2003 to 2010 compared with that from1900 to 1999.

Melting ice has become     5     great concern for many scientists because it makes the sea level go up. As the global temperature has gradually increased, ice all over the world has started to melt. When the ice melts,     6     adds more water to the oceans. Oceans then rise. As ice starts melting faster, the problem may get even     7    (bad). Water may start to overflow, moving higher onto the land. If Greenland’s ice keeps melting, it can become a disaster. If all of the island’s ice melted, it would make the oceans rise about 20 feet.

Scientists think that ice is melting faster now because of global warming. Burning fossil fuels, like oil and gas, has released greenhouse gasses, which     8     (warm) the earth. Recently, world leaders met in Paris, France,     9     (discuss) global warming.    10    (hopeful), they agreed to try to prevent the earth from getting too hot.

【推荐2】Directions: After reading the passages below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

The need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture.     1     the idea of a water shortage seems strange to someone fortunate enough to live in a high rainfall country, many of the world’s agricultural industries       2     (experience) constant water shortages.

Although dams can be built to store water for agricultural use in dry areas and dry seasons, the costs of water redistribution are very high. Not only is there the cost of the engineering itself, but there is also an environmental cost to be considered. One typical example is       3     where valleys are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water may flow easily through pipes to fields, but it cannot be transported from one side of the world to     4    . Each country       5     therefore rely on the management of its own water to supply its farming requirements.

This is particularly       6     (trouble) for countries with agricultural industries in areas dependent on irrigation. In Texas, farmers’ overuse of irrigation water     7    (result) in a 25% reduction of the water stores. In the Central Valley area of southwestern USA, a huge water engineering project provides water    8     farming in dry valleys, but much of the water use is being poorly managed.

Saudi Arabia’s attempts     9     (grow) wheat in desert areas have seen the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping       10     (see) them run dry.

【推荐1】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(不超过3个单词)。

China’s agriculture produces enough food supply to feed the country with a large population. With only 7 percent of     1     world’s land, China has to feed one     2    (five) of the world’s population. Therefore, China’s agriculture     3    (be) always an important topic and draws wide attention of the world. Some foreigners once raised the question, “Who will feed China?” China’s leaders and agriculture specialists’ answer was, “We Chinese will feed     4    (we).”

China is a    5    (develop) country and China’s agriculture has developed rapidly since reforms (改革) in the countryside began to be carried out in 1978. The main reform was the household responsibility system. It was believed     6     the system made farmers have the right to use land and deal     7     their output. Our country allowed farmers to develop different business and set up township companies in order that their enthusiasm for production could    8    (fire). The reform developed the county’s productive forces, and improved the rapid growth of agriculture—    9    (particular) in grain production—and the optimization (最优化) of agricultural structure. The     10    (achieve) have been outstanding so far.

【推荐2】语法填空

The Longji Rice Terraces     1    (build) by the local Zhuang and Yao people, to whom Guangxi is home. Starting in the Yuan Dynasty, work on the terraces took hundreds of years, until its     2    (complete) in the early Qing Dynasty.

There are few large, flat areas of land in the region. Building these terraces can increase the areas in     3     people grow rice. Besides, the flat terraces can catch the rainwater and prevent the soil from     4    (wash) away. But perhaps what is most significant is the way in which people    5    (work) in harmony with nature to make these terraces and grow rice. These terraces also provide a perfect environment     6     birds and fish.

    7     modern technology could help produce more crops, new generations continue to use ancient    8    (method) of agriculture to maintain the terraces. Today, the Longji Rice Terraces attract thousands of visitors who come     9    (admire) this great wonder     10    (create) by people and nature working together.