3. -----I’m terribly sorry to have put you through so much trouble.

-----________. I know you didn’t mean to.

A. Forget it　　　 B. No trouble

C. All right　　　 D. You’re welcome

2. It was ______ the 19^th century_____ heat was considered to be a form of energy.

A. not until; that　　 B. until; that

C. not until; when　　 D. until; when

1. Don’t you think ti is unfair for about two thirds of the population to have no_____ to health care?

A. access　　 B. basis　 C. entrance　 D. guarantee

4. The author means that Komodo dragons are powerful killing machines.

3. By thinning the blood and causing blood vessels to become larger.

2. Because his or its organs can’t get enough blood.

4. “If you’re looking for a new pet, don’t even think about Komodo dragons.” What does the author mean by saying that?

Answers: 1. a kind of poisonous liquid ( of some animals)

3. According to Fry and his team, how do the ingredients in Komodo dragons’ venom affect their victims?

2. Why does a victim get into shock after being injected?

1. The underlined word “ venom” in Paragraph 2 probably means _________________.