(
课件网) Our National Parks 2025年完胜高考语法填空 (1篇) Our National Parks Among the greatest treasures of the United States are its national parks. These parks contain an amazing variety of natural 1._____(wonder), including plants, wildlife, rock formations, geysers(间歇喷泉), 2._____ waterfalls. More than 50 national parks attract visitors every year. Some parks are quite large. Big Bend National Park in west Texas encompasses(包含) more than 800,000 acres(英亩) of the Chihuahuan Desert along the United States–Mexico border. Our National Parks wonders 一 and Famous 3._____ its many different environments, 4._____ park offers sharp contrasts in wilderness scenery. The Rio Grande curves through the park in a big bend, 5._____(creat) deep canyons(峡谷). Rugged(崎岖难行的) mountains, a desert plain, and unusual rock formations make up the park’s landscape. Big Bend is noted for 6._____(it) rare forms of animal and plant life, such as roadrunners(走鹃鸟) and prickly pears(仙人果). for creating its the Archaeologists have found and studied pictographs (painted art石壁画) and petroglyphs (carved art) on rock walls and artifacts(手工艺品) here that are nearly 10,000 years old. They reveal information about early Native American cultures and 7._____ life may have been like long ago. what The people who take care of national parks and who guide visitors through the parks are known as park rangers(护林员). Park rangers at Big Bend tell visitors how the area 8._____(change) over thousands of years. People who like working 9._____(outdoor) and respect nature often become park rangers. Many park rangers enjoy 10._____(read) about nature and studying the sciences. outdoors has changed reading The Science of Hot-Air Balloons 2025年完胜高考语法填空 (5篇) Pauline The Science of Hot-Air Balloons The Science Behind How Hot Air Balloons Work How Do Hot Air Balloons Work Since the rst hot-air balloon was launched in 1783, few things have changed about how they y. However, some new 1._____(difference) have made ballooning a 2._____(safe) activity enjoyed by many people worldwide. In the past hot-air balloons were always made out of linen(亚麻布) and paper. Today most are made of nylon(尼龙). Long pieces of nylon, 3._____(call) gores, are stitched together to create the balloon. Balloonists use nylon because it is a thin and light material. Also, it cannot be damaged by heat. The Science of Hot-Air Balloons differences 二 safer called Heat is the basic ingredient needed for ballooning. As air becomes hotter, tiny particles of matter move faster and faster. As the balloon lls with warmer particles, it begins to rise. This is 4._____ the air inside is lighter than the dense air 5._____(surround) the balloon. 6._____ is the warmer air particles that allow the balloon to oat above the cooler air. surrounding because It How the air is heated to in ate(使膨胀) the hot-air balloon has changed a great deal since the ... ...
