Rainforests are thick forests in the hot parts of the world. They have a great effect     1     the world environment. For example, they play     2     part in controlling the climate. Without     3     (they), climate would change a lot. What’s more, many plants are of     4     (important) in medical value.

However, in the past hundred years, humans     5     (begin) destroying rainforests to search for land and mine. The     6     (hard) we harvest from them, the more carbon dioxide is released into the air,     7     affects the climate, environment and ourselves as a whole. Meanwhile, we are losing the opportunity       8     (explore) the medical use of the plants. With the population growing     9     (rapid), we indeed have an increasing need for     10     (resource), but we will suffer more in the end if we keep on doing so.

Antarctic scientists were left     1    (astonish) when they discovered a unique creature at the bottom of the ocean, a documentary showed. The icy continent is     2     great interest to scientists as it is a totally unspoilt landscape     3     they can study the history of the earth and the effects of climate change. Thousands of scientists stay there, and they try to get a better idea of the icy continent’s past by     4    (dig) below the ice. 

The team of scientists started a journey through the surrounding waters of Antarctica     5    (discover) some of the most unusual oceanic life known to man. Thankfully, cameras were around to catch one of the strangest moments, when leading scientist Andrew Stewart made an interesting discovery about snailfish (狮子鱼). Snailfish are     6    (poor) understood and Andrew may have found a new species. The sea     7    (have) a wide variety of fish to thrill biologists. 

“    8     surprises me is that there may be about 115 species of this snailfish there,” Andrew said, “this is why I came to Antarctica, seeing things like this. It’s just beyond words. We now have the whole     9    (family) of fish that are found nowhere else in the world except in the Southern Ocean. These are     10    (attract) animals.”

The size of fish in the oceans is shrinking. A new report from Canada states fish may shrink by as much as a quarter in the coming decades, which mainly     1     (result) from global warming. The research team conducted tests on the effect of     2     (rise) ocean temperatures on the size and number of over 600 species of fish. They concluded that most fish are likely to shrink by 14-24 percent by the year 2050. The biggest changes     3    (see) clearly in tropical regions. There is     4     (little) oxygen in warmer water so fish cannot grow normally and many will migrate to cooler waters.

Lead researcher Professor William said: “We were surprised to see such a large decrease in fish size. Marine fish are generally known to respond to climate change     5     changing distribution and seasonality. But the unexpectedly big effect     6     climate change could have on body size suggests that we may be missing a big piece of the puzzle of understanding climate change effects in the ocean.” He added that overfishing and pollution will     7     (worse) the problem. “Our work shows a very     8     (worry) future for the oceans,     9     it is very important to reduce greenhouse gas emissions and develop better fish management policies     10     (adapt) to these changes,” he said.

The novel coronavirus（冠状病毒）outbreak is a major public     1    (emergent). The fast-spreading virus has reached most parts of the world and has proven a most difficult one to control. We    2    (see) anything like this since the    3     (found) of the People’s Republic. This is a crisis, and also a test. We have seen positive signs thanks     4     the hard work we have done. It is clear    5    the central leadership has made wise judgments on fighting the disease and taken timely and effective     6     (measure).

In the face of the battle, the central government     7     (lead) by President Xi has been active and determined in decision-making and coordination. The people of China have stood together and helped each other in these hard times,     8     perfect example of our strong national spirit. Through every test we have risen again,    9     (strong)than before.”

With the joint efforts of     10     (it) 1.4 billion people, China is fighting a determined battle against the coronavirus. The final victory belongs to us.