根据以下资料，回答20~23题。

There are many stereotypes about the character of people in various parts of the United States．In the Northeast and Midwest, people are said to be closed and private．In the South and West, however, they are often thought of as being more open and hospitable．Ask someone from St．Louis where the nearest sandwich shop is, and he or she will politely give you directions．A New Yorker might eye you at first and after deciding it is safe to talk to you, might give you a rather unexpected explanation．A person from Georgia might be very kind about directing you and even suggest some different places to eat．A Texan just might take you to the place and treat you to lunch.

路边跪着一个学生模样的年轻女子，她面前放着一张纸，上面写着因父母突然病重 而退学，希望好心人相助。写一篇短文描述此情景，并说明面对此事你如何做。

New Englanders are often thought of as being __.

根据以下资料，回答20~23题。

There are many stereotypes about the character of people in various parts of the United States．In the Northeast and Midwest, people are said to be closed and private．In the South and West, however, they are often thought of as being more open and hospitable．Ask someone from St．Louis where the nearest sandwich shop is, and he or she will politely give you directions．A New Yorker might eye you at first and after deciding it is safe to talk to you, might give you a rather unexpected explanation．A person from Georgia might be very kind about directing you and even suggest some different places to eat．A Texan just might take you to the place and treat you to lunch.

根据以下资料，回答1~5题。

请在第_____处填上正确答案。

The differences lie in the following except __ of the parts.

Which of the following is true according to the passage?

根据以下资料，回答16~19题。

The world's oceans have warmed 50 percent faster over the last 40 years than previously thought due to climate change, Australian and US climate researchers reported Wednesday．Higher ocean temperatures expand the volume of water, contributing to a rise in sea levels that is covering small island nations and threatening to destroy the low-lying, densely-populated low regions around the globe.

The study, published in the British journal Nature, adds to a growing scientific chorus of warnings about the pace and consequences rising oceans．It also serves as a corrective to a massive report issued last year by the Nobel-winning UN Intergovernmental Panel on Climate Change (IPCC), according to the authors.

Rising sea levels are driven by two things: the thermal expansion of sea water, and additional water from melting sources of ice．Both processes are caused by global warming．The ice sheet that sits atop Greenland, for example, contains enough water to raise world ocean levels by seven meters, which would bury sea-level cities from Dhaka to Shanghai.

Trying to figure out how much each of these factors contributes to rising sea levels is critically important to understanding climate change, and forecasting future temperature rises, scientists say．But up to now, there has been a puzzling gap between the projections of computer-based climate models, and the observations of scientists gathering data from the oceans.

The new study, led by Catia Domingues of the Centre for Australian Weather and Climate Research, is the first to reunite the models with observed data．Using new techniques to assess ocean temperatures to a depth of 700 meters from 1961 to 2003, it shows that thermal warming contributed to a 0.53 millimeter-per-year rise in sea levels rather than the 0.32 mm rise reported by the IPCC.

What happens when the ocean's temperature rises?

The rise in water levels is especially dangerous for small island nations and __.

According to the passage, any vacations from thinking should be taken __.

What was the main finding of the study?