D: Reading Comprehension
I. Sentence Comprehension
Read the following sentences and then choose the best choice.
"Scientists are sure about the greenhouse effect. They know that greenhouse gases like carbon dioxide and methane make the earth warmer. They do so by trapping heat in the atmosphere."
41. The word "so" in the last sentence refers to … .
a. knowing the greenhouse effect
b. making the earth warmer
c. trapping the heat in the atmosphere
d. being sure about greenhouse effect
"It is thought that about 700 shocks each year are destructive when they occur in a populated area. Luckily, most of these destructive earthquakes occur in less populated places."
42. Based on the above sentences … .
a. the number of the destructive earthquakes in populated places are very high
b. about 700 destructive earthquakes each year happen in a populated area
c. about 700 destructive earthquakes each year occur in less populated areas
d. fortunately, most of destructive earthquakes are predictable
"Involve your audience by asking questions, talking to them directly, and getting them interested. This helps build a relaxed relationship with your audience. Involve the audience by using attractive opening sentences, or by asking for help from the audience."
43. According to the above sentences, which of the followings is not correct?
a. avoiding irrelevant speaking
b. starting our speech with interesting sentences
c. building positive relationship with the audience
d. not letting the audience take part in the presentation
"The Earth could get warmer by itself, without help from people. Many climate scientists think that there is another reason for the change in temperature. They think that human activities like cutting down the trees, producing trash, and burning fossil fuel are helping make the Earth warmer."
44. Based on the above sentences … .
a. human activities is the only reason for the global warming
b. it seems that human activities is the main reason for the global warming
c. it seems that it is impossible for the Earth to get warmer by itself
d. scientists don't know what the reason for global warming is