A
One day, a man found the pupa(蛹 )of a butterfly. 1 (see) an opening in the pupa, he realized that the butterfly was ready to emerge. So he sat down and watched as the butterfly struggled to force its body 2 the little hole. However, minutes passed and the butterfly still couldn’t get out. The struggle was too hard for its weak body. The man then 3 (kind) enlarged the hole in the pupa so that the butterfly could finally break free. But instead of flying away, it just dragged itself around weakly, then died. The struggle to break out of the pupa was necessary for the butterfly’s survival 4 it enabled its wings and body to grow strong. Without the struggle, it was too weak to live.
B
Smartphones have become an essential part of our daily lives. However, 5 (protect) younger students’ eyesight and make sure they focus on their studies, primary and middle schools will have more specific rules to limit students’ mobile phone use on campus.
The Ministry of Education 6 (release) a notice in January that restricts primary and middle school students from carrying mobile phones to school. Those who still require their phones for some reason must get their parents’ and teachers’ approval and must hand their phones over during class time. The policy aims to improve students’ focus on study and fight for_7 (addict) to the internet and games.
C
Microplastics, referring to plastic fragments and particles(碎片和微粒) less than 5 millimeters in diameter (I1), have been found on Mount Qomolangma as high a 8, 440 meters above sea level, just 408.86 meters below the peak of the mountain, according to a recent study published in the journal One Earth. Scientists collected snow and water samples from 19 different 8 (spot). They found microplastics in all the water samples and part of the snow samples. The most 9 (pollute) sample was from the Base Camp in Nepal, 10 most human activity on the mountain is concentrated It had 79 particles of microplastics per liter(升)of snow.