He 20th Century technology time line

verb
noun
B.
Use the vocabulary
Complete the sentences with the words from Part A. Use the correct verb forms, 
and make nouns plural if necessary.
1. He used an ________________________ to move the boat forward in the water.
2. Some ________________________ know how to talk.

---

The Early United States | 83
3. To ________________________ something is to knock it over.
4. They ________________________ the boat through rough water.
5. He ________________________ a lot of information from the men.
6. The boat was made from a large tree ________________________.
7. They had to ________________________ the boat because it was full of 
water.
8. They had to ________________________ the boat because it turned over.
9. They knew how to ________________________ very quickly with those
oars.
10. A ________________________ is long, thin boat.
11. The ________________________ plant became an important source of 
fabric.
12. They had a large ________________________ of items to exchange.
V. UNDERSTANDING GRAMMAR
A.
Read about until
‘Til is short for until and has the same meaning. It can be followed by a noun.
They waited until [’til] dark.
It can also be followed by a clause.
They all jump in the sea and swim ’til [until] they have righted it again.
Note: Until is only used to refer to time. Don’t use it for distance or quantity. For 
example, They sailed until the Caribbean and I counted until 30 are not correct. 
These sentences require up to.
Until means up to a certain point in time—and not beyond. The sentence
I’m home until 6:00 means that I will not be home after 6:00.
B.
Use the grammar
Write a sentence about each situation, using until.
Example:
They stayed on the island. They left when they ran out of food.
They stayed on the island until they ran out of food.
1. They traded with the visitors. The visitors left.
2. He explored the Caribbean. He left when it was time to go home.

---

84 | Better Reading English
3. They worked on the building. They stopped at midnight.
4. They continued searching for gold in the New World. Eventually, they died.
VI. READ IT AGAIN
Read the journal entry again. Answer the question.
What did the natives want in exchange for the things they brought?

---

85
5