Vocabulary
Context Clues or Synonyms
Grammar
River to Tomorrow
Maps & Compasses
100

A sudden and disturbing vivid memory of an event in the past that interrupts a sequence of events. 

What is a flashback?

100

My friends were confused my complicated English, so I had to simplify it for them.

Synonym for simplify 

What is make it easier?

100

If it had rained, you would have gotten wet.

What is conditional type 3

100

In 1803, the United States purchase this land from France for $15 million.

What is the Louisiana Territory?

100

Today we use sophisticated tools such as GPS.

What does GPS stand for?

What is Global Positioning Systems?

200

Exact words between two characters and is usually enclosed between quotation marks (" "). 

What is dialogue? 

200

The chief lit a long-stemmed pipe. He pointed the stem to the four corners of the Earth, then to the sky and earth below. He took three puffs and repeated the ceremony three times. Then he passed the pipe around to the group. 

What is ceremony?

What is the ritual observances and procedures performed at grand and formal occasions.

200

If I had a lot of money, I would give it all to teacher Alex.

What is condition type 2

200

This French-Canadian man won Sacagawea in a gambling game and took her as one of his brides. 

Who is Charbonneau?

200

The type of map that shows the elevation of land with contour lines or with three-dimensional figures.

What is a relief map?

300

An __________ at the hospital helps a foreign patient

understand English instructions 

What is an interpreter?

300

Then the men stopped to hunt for food. As the group walked to a clearing on shore, Sacagawea gasped and pointed to a grove of pine trees. 

What is a clearing?

What is an area of forest without trees?

300

If I pass the final exam, I will do 1000 push-ups. 

What is conditional type 1?

300

The names of the rivers that Lewis and Clark traveled on their expedition.

What is the Missouri and Colombia rivers?
300

A box with different colors that show elevation, or how high the land is above sea level.

What is a key?

400

To finds the exact position

What is locate?

400

Chemistry, Biology, and Mathematics are the most boring disciplines in my opinion.

Synonym for disciplines 

What are exercises, authorities, studies, or instructions?

400

The lion was killed by the baby girl.

What is past simple passive?

400

The Shoshone would eat this when food was scarce. 

What is the soft wood under tree bark?

400
People would rub the tip of a needle against it in order to magnetize it.

What is a lodestone? 

500

Something that is very close or next to.

What is adjacent?

500

"We must have horses for the portage across the mountains from the Missouri to the Columbia River," Captain Lewis said. "We cannot get across by foot with all our supplies."

What does the word portage mean?

What is the act of carrying boats and canoes overland from one river to another?

500

A lot of coffee is grown in Vietnam.

What is passive present simple?

500

Sacagawea explained to Captain Lewis to hold a blanket a certain way and to flung it over his head and let it hit the ground three times when encountering the Shoshone. 

What is the Shoshone signs of peace?

500

500 feet is approximately this many meters.

What is 152.4 meters?