【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。

In order to observe Tibetan antelopes, we are here on the Tibet plain. We can see snow-covered mountains     1     (appear) into clouds which seem almost close enough to touch. In front of us, we can just make out a herd of Tibetan antelopes, moving     2     (slow) across the green grass. Though struck by their     3     (beautiful), I’m also reminded of the danger they are in. They     4     (hunt), illegally, for their valuable fur.

Between the 1980s and 1990s, the population of Tibetan antelopes dropped     5     more than 50 percent. Hunters were shooting antelopes     6     (make) profits. Their habitats were becoming smaller as new roads and railways were built.

In order to save this species from     7     (extinct), measure were taken to protect them, which proved to be very     8     (effect). In June 2015, Tibetan antelope was removed from the endangered list.

Looking at the stars in the evening, I think about the antelopes and       9     Zhaxi told me. Much is being done to protect wildlife, but if we really want to save the planet, we must change our way of life. Only when we learn to exist in harmony with nature can we stop being     10     threat to wildlife and to our planet.

【推荐3】阅读下面课文缩写材料，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。
    1    the writer called up her mother in the countryside on the phone，she learned that snakes came near their house and that the snakes seemed     2    (make) home near their house. The writer felt proud and considered     3    a chance for her to distinguish     4    by inventing something     5    would catch snakes but not harm them. She set about     6    (research) the habits of snakes. She decided to cool them so that they could be     7    (easy) caught. However，her first two plans were not successful. As a result，she had to attempt     8    third time，which helped her fulfill her aim successfully. She was     9    delighted that she was determined to send her ___________(invent) to the patent office to get recognition for her successful idea.

【推荐1】How much sleep does a person need?We are all different.Some people need only three hours of sleep a day     1    others need ten hours or more.The_     2    (suggest) amount of sleep is 8 hours for people aged 18 to 21 and 7 hours for people over 21.As people get old,they need less sleep time,    3    decreases to 6.5 hours a night after age 65.

Most people have the experience where they sometimes cannot fall asleep at night.About one third of Americans have difficulty in    4    (fall) asleep.The name of this illness    5    (call) insomnia.This is not    6    modern disease.Many famous people in history had insomnia.    7    (actual),some of these people had special ideas    8    (make) them sleep.Benjamin Franklin,the famous statesman and    9    (invent),had four beds.He moved from one to another to make himself sleep.Mark Twain,the famous American humorist,had a different way.He    10    (lie) on his side across the end of the bed

【推荐2】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。

Natural fibers are popular choices for carpets around the home and many offer an eco-friendly choice. Sisal and seagrass are some of the options available if you’re looking for     1     sustainable material and want to embrace their raw, organic look. Each     2    (have) their own individual properties, so they are suited to different requirements: seagrass, for example, is easy to clean,     3    (make) it a good choice for pet owners and families, while sisal has good insulating (绝缘的) properties and comes in a range of     4    (colour).

Wool carpets typically come in at a     5    (high) price point than other materials, but many see it     6     a long-term investment thanks to its durability. It offers a sustainable and luxurious floor covering which acts as an insulator and sound absorber, as well as being     7    (natural) fire-resistant.     8    (it) durability means the fibres are able to spring back into shape more readily than other materials. However, It’s worth bearing in mind     9     wool carpets don’t respond well to stains as they are highly absorbent and so aren’t well-suited to areas of the house     10     spillages (溢出) are frequent.

【推荐3】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。

The Amazon rainforest is home to a great     1     (various) of plant life; however, its soil is     2     (surprise) poor in nutrients. In fact, the soil in the region cannot support agriculture for more than a few years. If a scientist is shown a report     3     (list) the nutrients of that soil, he or she will probably think that only desert plants can survive in it! Then why is the soil so poor in nutrients? For one thing, the rainy season has     4     impact on the soil. In this season, the water level can rise to more than 12 meters.     5     the water goes away, it takes away the nutrients in the soil. For another thing, due to the Amazon’s hot climate, it is difficult for the soil     6     (build) enough nutrients. Dead plants and animals     7     (break) down more quickly. The nutrients are soon taken     8     by the roots of the plants deep beneath the ground. As a result, most of the forest’s nutrients are locked up in the plants     9     (them), thus allowing them to grow at a (n)     10     (believe) speed.