问答题
阅读理解：According to astronomer S.A. Phinney, kicking a rock hard enough to free it from Earth's gravity would require a meteorite capable of making a crater more than 60 miles across.<br>Moreover, even if Earth rocks were freed by meteorite impact, Mars's orbit is much larger than Earth's, so Phinney estimates that the probability of these rocks hitting Mars is about one-tenth as great as that of Mars's rocks hitting Earth.<br>To demonstrate this estimate, Phinney used a computer to calculate where 1,000 hypothetical particles would go if ejected from Earth in random directions.<br>He found that 17 of the 1,000 particles would hit Mars.<br>1.Which of the following, if true, would cast most doubt on Phinney's estimate of the probability of Earth rocks hitting Mars？<br>A Rather than going in random directions, about 25 percent of all particles ejected from Earth go in the same direction into space.<br>B Approximately 100 meteorites large enough to make a noticeable crater hit the Earth each year.<br>C No rocks of Earth origin have been detected on Mars.<br>D The velocity of rocks escaping from Earth's gravity is lower than the velocity of meteorites hitting the Earth.<br>E No craters more than 60 miles across have been found on Mars.
问答题
what should i do？求解GRE写作模拟题（4）Argument<br>Task Direction:<br>You will have 30 minutes to plan and write a critique of an argument presented in the form. of a short passage. A critique of any other argument will receive a score of zero.<br>Analyze the line of reasoning in the argument. Be sure to consider what, if any, questionable assumptions underlie the thinking and, if evidence is cited, how well it supports the conclusion.<br>You can also discuss what sort of evidence would strengthen or refute the argument, what changes in the argument would make it more logically sound, and what additional information might help you better evaluate its conclusion. Note that you are NOT being asked to present your views on the subject.<br>GRE® readers who are college and university faculty will read your critique and evaluate its overall quality, based on how well you identify and analyze important features of the argument organize, develop, and express your critique of the argument support your critique with relevant reasons and examples control the elements of standard written English.<br>Before you begin writing, you may want to take a few minutes to evaluate the argument and to plan a response. Be sure to develop your ideas fully and organize them coherently, but leave time to read what you have written and make any revisions that you think are necessary.<br>Section Direction:<br>Discuss how well reasoned you find this argument.<br>Question:<br>The following appeared in a letter sent by a committee of homeowners from the Deerhaven Acres to all homeowners in Deerhaven Acres.<br>"Seven years ago, homeowners in nearby Brookville community adopted a set of restrictions on how the community's yards should be landscaped and what colors the exteriors of homes should be painted. Since then, average property values have tripled in Brookville. In order to raise property values in Deerhaven Acres, we should adopt our own set of restrictions on landscaping and housepainting."
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