3 . 阅读下面短文，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。

There is no doubt that humankind dreams of making Mars our second home. However, sending people there will require all the skills, courage and     1     (intelligent) of the human race. While the Moon can be reached within days, it would take months to reach Mars,     2     (travel) through dangerous solar radiation. And even if the first settlers do reach Mars safely, staying alive will be     3    daily challenge, but as proved by the Biosphere experiment, not impossible.

As early as the 1980s, scientists were building Biosphere 2 in the Arizona desert. It consisted of a closed space    4     people, animals and plants could live together. The “closed” concept meant that the space was designed     5     (function) with its own oxygen, food and water, needing nothing from the outside world.     6     the two-year experiment was not a success, it did provide us with a better understanding of how humans might be able to live on another planet. More recently, scientists     7     (succeed) in growing a variety of plants in an environment similar to that on Mars. That     8     (definite) is a big step forward.

For now, human settlement of Mars is still     9     (decade) away. In the meantime, scientific research shows that the planet Earth is getting     10     (warm). This change is having a terrible effect on the biosphere.

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。

3D printing and virtual reality are cool, but when are we going to be able to clone ourselves? It'd be fantastic for    1    （we）to send our clone off to school or work and sit back and do    2    we really want to do. There have been important advances in cloning in the last several decades, leading to the    3    （success）cloning of various animals. So far, however, there    4    （be）no human clones.

In large part, cloning has been    5    victim of pop culture to the degree that the general public has grand notions of what it will be like. There is no    6    （possible）of cloning a grown version of ourselves in a matter of hours or days（like you see in the movies）.

    7    （general）, we already have the tools to make cloning happen today; we just have some moral problems     8    （overcome）before the world won't raise major alarms at scientists cloning someone. That leaves the question     9    us then, the general public, do you think cloning is okay? Would you clone a lost loved one to bring them back, or if you found yourself unable to have kids, would you clone yourself? These are the questions we must answer first before we succeed in    10    （create） human clones.

5 . 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。

Cards and digital(数字的) technologies     1    (kill) off cash slowly, but is it a cause for concern? Not     2    (necessary). Here are some ways of making the most of digital finance.

Cash is no longer king. Over recent years fewer and fewer transactions have been made with cash. The most recent figures show coins and notes are used just 34% of     3     time, down from 63% a decade ago. And usage     4    (predict) to fall to just 10% in 15 years.

Instead we’re paying with cards and digital technologies. Some of this is down to user choice, with contactless cards and smartphones making spending     5    (fast) and more convenient.

But it’s also being forced upon us. Some retailers are refusing physical money as they can avoid the high bank charges levied(征收) at them for     6    (handle) cash. Meanwhile it’s harder to get your hands on notes as cash machines and     7    (bank) disappear from the high street. And these are trends which are likely     8    (increase) in the coming years.

This could be bad news if you still primarily use cash,     9     that’s how you pay your bills or how you budget. For some, cash is just what you know. For     10    , cash is a necessity—especially when going digital is the alternative.

As a result this move towards cashless society makes many uneasy.

6 . 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(不多于3个单词)。

Li Qiang was taking up the prize to travel to 3008 AD. It was his first time that he     1    (travel) to space. So he was unsettled for the journey. Luckily, his guide, Wang Ping, was also his friend and gave him much help.

    2     (transport) by Wang Ping’s parents’ company, he arrived in the future in a time capsule. At first, he found it hard     3     (tolerate) the new surroundings and his head ached     4     lack of fresh air. Wang Ping hurried him to a small room for     5     rest and then they each collected a hovering carriage driven by computer. Soon Li Qiang could fly as     6     (swift) as Wang Ping.     7     he lost sight of Wang Ping because of too many carriages     8     (fly) by in all directions. Wang Ping was swept up into the center of them. After a while Li Qiang caught up with him.

Arriving at a strange-looking house, Wang Ping showed Li Qiang into a large room. The wall of the room was made of trees. The leaves of the trees provided     9     with much-needed oxygen. After having a meal and a bath, Li Qiang found himself     10     (exhaust) and then he slid into bed.

7 . Can you imagine waking up each day in a house that is     1     (gentle) rocked by the movement of water? Well, for some people this vision of the future may become a reality.

It is a commonly accepted fact that       2     the Earth’s temperature rises, the ice caps at the North and South Poles will melt,     3     (cause) the sea level to rise.

So, where does this leave the many countries in the world       4    have large sections of their populations living in areas which lie at or below sea level? The Netherlands, for example, is one of       5     most highly populated, low-lying countries and       6     (battle) with the problem of flooding for years. Further rises in the sea level would result in much of the country disappearing under water.

Inventive architects may have come up with a       7     (solve) to the problem: a house actually built on the water. The basic idea is that houses will have a base       8     (fill) with air and a way of anchoring(使固定) them to the ground. This will allow the house       9     (move) upwards whenever the sea level rises and sink back down when the sea level drops. So, will       10     (float) houses be the homes of the future? For some people there may be no alternative.