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。

Today,     1    (million) of people are always looking at their mobile phones with their heads down. These people     2    (call) the “Heads-down Tribe”.

Many     3    (alarm) facts happen to the “Heads-down Tribe”. A man in America     4    (struggle) his way home with his head down, using his mobile phone on.     5    (fortunate), he knocked into a big lost bear on the half way. Imagine what     6    awful mess then! Another fact is the     7    (complain) from old people in China. They cannot stand their children     8     come back home to get together but hardly talk to them, because they prefer their mobile phone.

Mobile phones are different from     9    (tradition) tools for communication. Are they good or not? That depends     10     how people use them. Let’s be “healthy” user and try to be the “Heads-up Tribe”.

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。

Reuters reported that the scientist’s efforts got rewarded when the twin chickens were cloned in the lab after years of experiments. This breakthrough    1    (possible) enabled people’s adored pets to bring to life.    2    , it bothered him from time to time that the chickens, health was in poor condition because they were     3    (able) to resist illnesses. This drawback    4    (cast) him down. Merely two weeks later, the clones and their carrier died,    5    struck frustration into his heart. He retired before he attained his ambition and became a member of an opera chorus to relieve his depression.

Shortly afterwards, the media published a conservative    6    (argue) objecting to cloning owing to moral problems, and suggested commercial profits from cloning    7    (forbid).

When    8    (interview), the scientist stared at the decorations on the ceiling, thinking for a while, and then said, “I’m not in favour    9    any arbitrary assumptions, but    10    (undertake) cloning does differ from the straightforward procedure of making loafs out of flour. Until we accumulate enough exact knowledge, any practice is in vain and is bound to fail.”

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。

Barbara Millicent Roberts, also called Barbie,     1     (consider) the most successful toy doll in history. She first     2     (appear) in the world of toys about 60 years ago, and has become very popular among little girls.

According to the Mattel Company,     3     created Barbie, 90% of all American girls between 3 and 10 have at least one Barbie at home. However, today there are many dolls competing     4     Barbie on the market. Bratz dolls, for example, look more like today’s pop     5     (star) with lots of makeup and miniskirts. Now Bratz is     6     great challenge to Barbie, as the company offers various clothing, too.

It seems that Barbie is no longer     7     (attract) to older girls. “For younger girls, playing with a Barbie is much fun, but when they get older, they want something more fashionable and modern,” says a shop keeper of a toy store in New York. On the international scene, Barbie remains number one. Although Mattel has been selling fewer Barbies in the United States over the past years, sales in other countries have kept     8     (rise). It is hard     9     (say) how long Barbie will stay on as a celebrity in the world of toy dolls, but     10     (undoubted) 60 is not the age to retire.

4 . 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 Hainan gibbons (长臂猿), who live in rainforest trees over 10 meters tall, rarely set foot on the ground.     1     (know) as the world’s rarest primate(灵长类动物), the Hainan gibbons have been listed as     2     (critical) endangered species by the International Union for Conservation of Nature.

Fortunately, conservation efforts have seen positive results in recent years. According to the latest     3       (office) figures, the gibbon population in Hainan     4       (estimate) at 36individuals living in five family groups, from 30 in four groups in 2019. The increase in gibbon population comes as China enhances efforts     5     (construct) the National Park of Hainan Tropical Rainforest.

This national park,     6     covers 4,269 km², is home to China’s most concentrated and well-preserved tropical rainforests. Many wildlife that     7       (disappear) previously are returning to their homes thanks to the park. In recent years, Hainan has promoted the construction of the park, strengthened the restoration of tropical rainforests,     8       carried out ecological relocation projects in core protected     9     (area), such as planting more trees to provide food for the Hainan gibbons.

A research center has also been established,     10       experts from home and overseas jointly providing suggestions for their protection. The population of the gibbons is expected to hit between 60 and 70 in 2035, as long as current protection efforts and environmental stability can be sustained.

5 . 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。

Palm oil (棕榈油) is the most     1     (wide) used vegetable oil worldwide. It’s found in a huge variety of products ranging from vitamins to chocolate and bread. The oil is popular as it has a high melting point and contains healthy fats. The former makes it easy to spread     2     the latter makes it good for our body.

But the oil’s popularity comes     3     a high price. Palm trees need a rainforest and lots of land to grow on. As     4     result, thousands of acres of rainforests in Indonesia, the world’s biggest palm oil     5     (produce), are being destroyed to make room for palm farms.

With half of the world’s palm oil     6     (come) from Indonesia, orangutans (黑猩猩) have suffered a lot there. In the last 20 years, over 80% of their habitat     7     (destroy). What’s worse, in 2015, wildfires caused by illegal destruction of some rainforests endangered two fifths of the remaining orangutans. Palm farms have also threatened     8     (tiger) and elephants and caused water and air pollution.

The easiest solution is to stop using so much palm oil. However, it’s not easy because no other natural oil has both of its qualities. Now scientists are creating a new oil     9     (replace) it by using food waste and M. pulcherrima, a yeast (酵母)     10     feeds on leaves, fruits and flowers.

6 . 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 Chinese people are without doubt the ones who best understand the nature of tea. We attach great importance     1     tea in Chinese culture.

While records of tea in Chinese literature go back to about 5,000 years ago, the beginning of tea’s use as     2     kind of drink is unclear. At first, tea was valued for its medical qualities. It has long been known that tea helps digestion (消化),     3     is why many Chinese would like     4     (drink) it after their meal. The rising of tea drinking to an art form     5     (begin) in the 8th century, with the publication of Lu Yu’s The Classic of Tea. His work contained several useful tips for     6     (produce) tea, many of which are still in use today. In the centuries following the publication of Lu Yu’s work, tea’s popularity spread     7     (rapid) throughout China.

Not only did tea drinking become a fitting subject for books and poems, but the rich presented tea as     8     (gift) to friends and guests. Later, teahouses started to spread all over the country. While the Chinese have never developed an     9     (office) ceremony (礼仪) surrounding tea drinking like the Japanese tea ceremony, they have respect for     10     (it) role in their daily lives.

7 . 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。

You’ve probably heard the phrase “sitting is the new smoking”, and research does show that siting long may be     1     (harm), even if you exercise regularly.

Regular exercise, particularly higher levels of physical activity, may not cancel them     2     (entire)though it appears to reduce ill effects somewhat. An     3     (analyze)of more than a dozen studies concluded that we need at least 60 minutes a day of exercise to fight the increasing risk of premature(过早的)death due to sitting long.     4     the contrary, another study found that the same amount of exercise doesn’t cancel the negative effects of sitting on insulin(胰岛素)levels and blood fats.

The damage from sitting for a long time     5     (think)to be due to reduced muscle activity,       6     can decrease the body’s ability to regulate blood sugar and remove bad blood fats.     7     (reduce)sitting time, there are actions you can take.

·At work, stand for a few minutes every half-hour, perhaps during phone calls, tea     8     (break)or meetings.

·If possible, use a desk that lets you work in a standing or seated position. Or try one     9     (attach)to a treadmill(跑步机)that allows you to slowly walk while you work.

·At home, get up regularly from your computer. Make     10     attempt to stand and do the housework while watching TV.

8 . 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 you might suppose from the name, Snowdonia National Park is set on Snowdon Mountain. The mountain is 3,560 feet tall and as picturesque as it is peaceful. Lakes and rivers are set among trees and     1    (rock)outcroppings, which makes it the perfect place to practice photography. Visitors will also find old buildings     2     several castles within park borders. The history of the area is full of folk tales and legends and makes it an even more exciting place     3     (visit).

In 1951, the Park     4    (establish)as the 3rd National Park in Great Britain, after the Peak District and the Lake District.     5     covers 2,140km²(827 square miles), and has 60km(37 miles)of coastline. The natural forests of the Park are     6     the mixed deciduous type. The Welsh Oak, ash, birch, hazel and mountain-ash are     7     most common trees. Over 26,000 people live within the Snowdonia National Park, of     8     approximately 62% can speak some Welsh. Every year Snowdonia National Park attracts more than 6 million visitors,     9     (make)it the third most visited National Park in Wales and England.     10     you are a hiker, Snowdonia National Park is your perfect choice.

9 . In addition to the lunar program, China's ________ (astronaut) have entered the space station of the country's own construction three times. (所给词的适当形式填空)

10 . It’s been reported ________ 76 percent of employees in some western countries are using emojis at work.（用适当的词填空）