Water Instructor: Tahani

Al-Hammami

Key Words: Figures

• Large numbers: one million

(1,000,000); three billion

(3,000,000,000); three

hundred thousand (300,000);

six hundred and fifty-three

(653).

• Decimals: 1.7 (one point

seven); 6.2 (six point two).

• Fractions: a half (⅟2), a third

(⅓), a quarter (⅟4), a fifth (⅕), a

tenth (⅟10), two thirds (⅔).

• Estimates: about a million,

nearly 70%, over a third,

between 30 and 40.

• Comparison: twice, three

times as many / as much

Grammar: Speculating

• Modal auxiliary verbs that express degrees of certainty.

Two Types of Speculating

1. Speculating about the present:Modal verb + be

e.g. It couldn’t be more difficult.

2. Speculating about the past:Modal verb + have + 3rd form of the verb

e.g. They may have done other work.