内容正文:
Unit 4 Customs and Traditions
单元素养评估测试卷
第一卷
II. Grammar and Vocabulary (20%)
Section A
Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.
Our Vanishing Nights
If humans were truly at home under the light of the moon and stars, we would go in darkness happily, the midnight world as visible to us as it is to the vast number of nocturnal (夜间活动的) species on this planet. Instead, we are diurnal creatures, with eyes adapted to living in the sun’s light. This is a basic evolutionary fact, (21)________ ________ most of us don’t think of ourselves as diurnal beings. Yet it’s the only way to explain (22) ________ we’ve done to the night: We’ve engineered it to receive us by filling it with light.
The benefits of this kind of engineering come with consequences – called light pollution – whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design, which allows artificial light to shine outward and upward into the sky, (23)________ it’s not wanted, instead of focusing it downward. III-designed lighting washes out the darkness of night and radically alters the light levels – and light rhythms – (24)________ ________ many forms of life, including ourselves, have adapted. Wherever human light spills into the natural world, some aspect of life is affected.
Among mammals alone, the number of nocturnal species (25)________ (be) astonishing. Light is a powerful biological force, and (26)________ many species it acts as a magnet. The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings. Frogs living near brightly li