As her mother cheered from the sideline of a soccer game last fall in Bend, 7-year-old Naomi Vaughan went off to play in the nearby woods     1    (surround) the soccer fields. Naomi passed the time digging a hole in the dirt. After a while, something shiny caught her eye and she lifted it out of the soil     2    (show) her mother. She called it her ＂Moana rock,＂ because it reminded     3    (she) of the spiral-shaped amulet (护身符) from the animated Disney movie.

Her mother, Melissa Vaughan, examined the relic and knew it wasn’t just some     4    (dust) rock. ＂I can’t believe you just found that,＂she told her daughter. ＂It could be millions of years old.＂    5     Naomi found was     6     ancient fossil called an ammonite(菊石), an extinct marine creature     7     last existed more than 65 million years ago.

Experts say ammonites     8     (be) not naturally found in Bend, Ore., but are common to the east near Mitchell, Ore., more than 80 miles away. How this ammonite wound up in Bend is a mystery.

Greg Retallack, an expert in ammonites,     9    (believe) the fossil originated from the Bernard Formation of Bernard Ranch near the abandoned eastern Oregon town of Suplee — about 112 miles east of Bend. Because experts don’t know     10    exact) where it came from, it is scientifically worthless.

In 2013, a lot of people were shocked by a news photo of a dead polar bear that     1     (find) on Norway’s Arctic island of Svalbard, far from its habitat. All that remained of the poor bear were “skin and bones”. Experts claimed that low sea ice levels     2     (cause) by climate change meant the bear could not hunt seals as before, so it had to travel greater distances in order to find food. This     3     (alarm) case showed how the increase in temperature had an impact on Earth’s ecology.

COP26,     1     (know) as “Conferences of the Parties”, was the latest in a series of meetings bringing together governments     2     (protect) the environment. Its main goal was     3    (take) measures against climate change — long-term changes in world weather patterns that are linked to human activities including farming, industry and transport. Gases such as carbon dioxide, which are produced by these activities, trap heat in Earth’s atmosphere and cause temperatures to rise,     4     (lead) to extreme floods, heatwaves and storms.

Climate Change Requires The World’s Attention

There is little doubt that Earth     1    (get) warmer and warmer. In 2013, a lot of people were shocked by a news photo of a dead polar bear which appeared to have starved and died. This     2    (alarm) case showed how the increase in temperature had an impact     3    Earth’s ecology.

Climate scientists often mention a key climate process     4    (call) the “greenhouse effect”,     5    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     6    (trap) in the atmosphere, causing Earth’s surface temperature to rise quickly.

There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and     7    (nature) disasters worldwide, not only causing serious damage, but also costing human lives. Climate scientists have warned that if we do not take appropriate actions, this warming trend will     8    (probable) continue and there will be a higher price     9    (pay).

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