In recent years, climate change has had a great impact     1    animals. In 2013, the whole world     2    (shock) by a news photo of a dead polar bear on Norway’s Arctic island of Svalbard. Due to the rise in temperature, the polar bear seemed     3    (die) from lack of food.

According to climate scientists, a key climate process,     4    is called the “greenhouse effect”, includes the “natural” greenhouse effect and the “man-made” green-house effect. The former refers to the fact that heat from the sun     5    (enter) the atmosphere and warms Earth’s surface.

Greenhouse gases in the atmosphere trap some of the heat,     6    (keep) Earth’s climate warm and habitable. However, the latter has become    7    big problem. When people burn fossil fuels, more heat energy is trapped in the atmosphere and causes Earth’s surface temperature to rise    8    (quick).

The evidence shows that the rise in temperature has led to an increase in extreme weather and natural     9    (disaster) worldwide. Climate scientists have warned that this warming trend will become     10    (bad) if we do not take appropriate measures. The severe situation requires people allover the world to pay more attention to it.

Temperatures around the world are rising. Many places     1     (experience) extreme weather events such as extreme heat since the start of the new century.

Scientists have shown all that is going to get even     2     (bad). They looked at cities in the north half of the planet. They     3     (especial) paid attention to those in the US.

According     4     simple geography, the cities near Canada have cool to mild weather. Those near Mexico     5     (be) hotter and more humid. However, things are going to look and feel a lot different in 2080.

The scientists created a weather model     6     (study) the weather changes in 2080. They considered two important points. One was the warming of the planet by 1.5℃ to 3℃ and     7     other was the increasing greenhouse gas levels. Unluckily, what the scientists found was     8     (surprise)! The cities in the north turned into ones in the south—about 500     9     (mile) south. For example, Washington D. C. felt like Greenwood, Mississippi, and Mississippi felt like Mexico.

That’s bad news for people in the US,     10     is also bad for people everywhere because we’re all in the same boat.

There is little doubt that Earth is getting warmer and warmer. In 2013, a lot of people     1     (shock) by a news photo of a dead polar bear     2     appeared to have starved and died. This alarming case showed how the increase in temperature had     3     effect on Earth’s ecology.

Climate scientists often mention a key climate process     4     (call) the “greenhouse effect”, which has two common meanings. Without the “natural” greenhouse effect, Earth could not sustain life. However, the “man-made” greenhouse effect has now become a big problem because more heat energy is trapped in the atmosphere, causing Earth’s surface temperature to rise     5     (quick).

There is strong evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide, not only     6     (cause) serious damage, but also costing human lives. Climate scientists have warned that if we do not take appropriate actions, this warming trend will probably continue and there will be a     7     (high) price to pay.

Governments need to consider making     8     (policy) and taking appropriate actions to reduce greenhouse gas emissions. We as individuals can also reduce our “carbon footprint”. It is our responsibility     9     (seize) every opportunity to educate everyone about global warming, along     10     its causes and impacts.

There is strong and comprehensive evidence that the rise in temperature     1    (lead) to an increase in extreme weather and natural disasters worldwide, causing serious damage, but also costing human lives. Climate scientists have warned that if we do not take appropriate actions, this warming trend will     2    (probable) continue and there will be a higher price     3    (pay). In fact, news reports are frequently broadcast about extreme rainstorms and heatwaves     4    (cause) deaths and economic losses.

Continued greenhouse gas emissions will result     5    further warming and long-lasting changes to the global climate. This requires the attention of people all over the world. Governments need to consider making     6    (policy) and taking appropriate actions and measures to reduce greenhouse gas emissions. We as individuals can also reduce our “carbon footprint” by restricting     7    amount of carbon dioxide our lifestyles produce. It is our responsibility     8    (seize) every opportunity to educate everyone about global warming, along with its causes and     9    (impact), because this is the most serious issue affecting all of us on this planet. So     10    will you do to help?

There is little doubt    1    Earth is getting warmer and warmer, which has a bad impact     2    Earth’s ecology. There is strong and comprehensive     3    　(evident) that the rise in temperature has led     4    an increase in extreme weather and     5     (nature) disasters worldwide, not only causing serious damage, but also     6    　(cost) human lives.     7     (continue) greenhouse gas emissions will result     8     further warming and long­lasting changes to the global climate. This requires the attention of people all over the world. Governments need to consider     9     (make) policies and taking appropriate actions and     10    　(measure) to reduce greenhouse gas emissions. We as individuals can also reduce our “carbon footprint”．

More than 11000 scientists are warning that the Earth, in their words “clearly faces a climate emergency.” The scientists represent several fields of study and come from 150     1     (country)around the world. They approved a report that appeared in the publication Bioscience     2     (early)this month. It warns that the world would face “untold human suffering”     3     it does not make deep and lasting shifts in human activities that influence climate change.

The new report     4     (call)the “World Scientists’ Warning of a Climate Emergency.” This is the first time     5     large group of scientists have jointly(共同地)used the word “emergency” when     6     (talk)about climate change. “Despite 40 years of global climate negotiations…we have generally conducted business as usual and have largely failed     7     (address)this predicament(艰难处境),” the study said. ”Climate change has arrived and is accelerating faster than many scientists expected.“ The report identified six areas that the world needs to deal     8     immediately. The scientists appealed to nations to use energy more efficiently and cut     9     (they)use of fossil fuels. They suggested that lawmakers approve taxes on the burning of carbon-based fuels, such as coal, oil and     10     (nature)gas.

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,     1     mainly results from global warming. The research team concluded tests on the impact of rising ocean temperatures on the size and number of over 600species of fish. They concluded that most fish are likely to shrink by 14-24 percent by the year 2050.The biggest changes     2     (see) clearly in tropical regions. There is     3     (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     4     (universal) known to respond to climate change by changing distribution(分布) and seasonality. But     5     unexpectedly big effect that climate change could have     6     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 import ant to reduce greenhouse gas emissions and develop better fish management policies     10     (adapt) to these changes,” he said.