1 . Without sharp reductions in greenhouse gas emissions, climate change threatens future Winter Olympic Games because their locations would be too warm to host the events, a new study has found.

If the world’s high emissions continue their trend, by the 2080s all but one of the 21 cities that previously hosted the Winter Games - Sapporo, Japan - would not be able to do so again. Among them, 6 cities would be considered “marginal” while 14 would even be seen “unreliable”— meaning the right conditions for snow and athlete safety cannot be met.

But that won’t necessarily happen if the world takes urgent action and follows the 2015 Paris Climate Agreement, according to Daniel Scott, the lead researcher for the University of Waterloo’s report. Under that deal, nearly 200 countries agreed to greatly cut their collective greenhouse emissions.

Athletes and coaches surveyed by the researchers said they re already seeing the effect climate change has on their sports. “Some of the coaches that did the survey have been coaches in the sport for 30 years,” Scott said. “They’ve traveled the world, back to the same competitions, and they’ve seen that certain competitions don’t happen, as regularly or uninterruptedly as they used to because of warmer temperatures.”

The Summer Olympics are also feeling the effects of climate change. Tokyo’s Olympic and Paralympic Games are likely one of—if not—the hottest and most humid Games on record. Daily temperatures reached 80F high with high humidity (湿度) that could make it feel like 100°F.

But winter sports seem more strongly influenced by the impact of a warmer world. During the 2014 Winter Olympics in Sochi, Russia, skiers were overheating in the same way a marathon runner would at nearly 90F weather. Due to the great impact, the study makes us worry that outdoor games may have to move indoors or be held at a different time of year altogether in order to accommodate higher temperatures.

1. What does the underlined word “marginal” in Paragraph 2 probably mean?

A．Almost unqualified.

B．Pretty satisfactory.

C．Rather unpopular.

D．Quite suitable.

2. Why are Tokyo’s Olympics mentioned in Paragraph 5?

A．To show the spirit of the Olympics.

B．To stress the impact of climate change.

C．To reveal the cause of warmer climate.

D．To compare summer and winter Olympics

3. What is the author’s attitude to the finding of the study?

A．Conservative.

B．Tolerant.

C．Optimistic.

D．Concerned.

4. What does the text mainly talk about?

A．Global climate changes.

B．Greenhouse gas emissions.

C．The Winter Olympics crisis.

D．The future Olympic Games.

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。

Climate change makes wildfires, hurricanes and heat waves more frequent     1     stronger than before. The bad effects are in the headlines     2     (regular). The warming climate also changes lives     3     subtler (不易察觉的) ways.

In Tampa, Fla. , Sara Brogan says summers are getting     4     (hot). Going to the beach to cool off is a decades-long tradition for her family. They     5     (go) to the beach once this summer. There was a red tide. These algae (水藻) blooms are increasing, likely because of human     6     (pollute) and warming temperatures. They produce toxins (毒素) that kill sea life. That is     7     Brogan is staying away from the beach. A lot of times it's—before you even get there, you can feel the smell of dead fish is very strong.

Wildfire smoke obviously is not good for people and the animal. Heather Duchow and her husband celebrated     8     (they) 20th anniversary in Montana's Glacier National Park. When they got there, it was very smoky. She felt disappointed: the smoke made it difficult     9     (see) the awe-inspiring views she remembered. For future anniversaries, they may go sooner in the summer,    10     (hope) to avoid the worst of fire season. It's strongly recommended that some measures should be taken to control the warming climate.