76 Grammar and Language Workbook, Grade 6
Copyright © by Glencoe/McGraw-Hill
Grammar
- It carves a canyon through the mountains.
- In several places, the river falls from steep cliffs.
- Visitors to Yellowstone observe a variety of wildlife.
- Many species of wildflowers grow in the Rocky Mountains.
- Moose roam the area.
- Herds of bison graze in the park.
- Both grizzlies and black bears live in the park.
- Yellowstone’s famous bears sometimes frighten campers.
Exercise 2 Draw two lines under the action verb in each sentence. If the action
verb has a direct object, circle the direct object.
The Grand Canyon attracts millions of visitors each year.
- Millions more catch glimpses of the canyon though airplane windows.
- Grand Canyon National Park contains the most spectacular sections of the gorge.
- The park encompasses more than one million acres.
- At visitor centers, people study maps of the park.
- They learn interesting facts about the area’s geology.
- An enormous sea once covered this part of North America.
- The Colorado River carved the canyon over many years.
- Many visitors hike the park’s trails.
- Trails lead hikers down from the canyon’s rim and back up.
- Some people ride mules instead of hiking.
- Visitors notice fossils in the canyon walls.
- Sandstone, limestone, and shale form multicolored layers.
- Weather constantly changes the rock formations.
- Wind and rain erode the soft rock.
- Sometimes big chunks of rock fall.
- Changing light constantly alters the canyon’s appearance.