ADSL采用（）调制技术。

2008年7月22日，天津市精神文明建设委员会正式颁布《天津市民文明公约》、《天津市民行为守则》。市民文明公约是全体市民一致认同、共同遵守的公共约定和普遍价值准则。《公约》、《守则》的制定说明[ ]

①恰到好处的约束符合大多数人的切身利益

②《公约》、《守则》的颁布实施是为了不断提高天津市人民的生存质量，让大家更好地享受生活

③《公约》、《守则》颁布实施有利于进一步提升天津市市民的文明素质

④天津市市民在受到《公约》、《守则》约束限制的同时，也享受着约束带来的种种好处

A、①②③④

B、①②③

C、②③④

D、①③④

—Do you know _______ the girl in red is?

—I’m not sure. Maybe a doctor.

A．whose

B．how

C．what

D．which

C

Yellowstone Weather

Yellowstone National Park is at high altitude. Most of the park is above 7500 feet (2275 meters).

Yellowstone’s weather is unpredictable. In summer, it may be warm and sunny with temperatures in the high 70s. At night in any given month, the temperature may drop close to freezing. So it is best to come prepared for cold evenings and mornings, especially if you are camping or hiking. When you leave your campsite, please leave it prepared for possible thundershowers and wind.

A sunny warm day may become fiercely stormy with wind, rain, sleet and sometimes snow. Without enough clothing, an easy day hike or boat trip can turn into a battle for survival.

Seasonal Weather Information

Spring

Cold and snow continue into May, although

temperatures gradually climb. Early in spring, daytime temperatures average in the 40s to 50s; by late May and June, they may reach the 60s and 70s. Nighttime lows fall below freezing.   Summer

Daytime temperatures are usually in the 70s, occasionally reaching the 80s in the lower area. Nights are cool, temperatures may drop in the 40s and 30s，sometimes even the 20s. June can be cool and rainy; July and August tend to be somewhat drier, although afternoon thundershowers are common.

Fall

Weather can be pleasant, although temperatures average 10~20 degrees lower than summer readings. Nighttime lows can fall into the teens and even lower. Snowstorms increase in frequency as the weeks go by or towards the end of the fall season. Winter

Temperatures often stay near zero throughout the day, occasionally reaching high in the 20s. Subzero nighttime lows are common. Annual snowfall averages nearly 150 inches in most of the park. At higher places, 200~400 inches of snow have been recorded.

64、The theme（主题）of this passage is       in Yellowstone National Park.

A、the special weather      B、the beautiful scenery

C、campsites for free       D、terrible thunderstorms

65、This passage is mainly written for those who plan to     in Yellowstone National Park.

A、do research work       B、take a business trip

C、have sports games      D、spend their holidays or take a tour

66、Which of the following best describes Yellowstone’s weather?

A、The weather is generally changeable and it snows most of the year.

B、The lowest nighttime temperature often stays about zero in winter.

C、Weather in fall is pleasant and temperatures never fall below freezing.

D、It’s pretty warm in the day and very cold at night throughout the year.

67、If you are planning to spend your holiday in Yellowstone National Park in summer, what should you take with you?

A、Just some light clothing such as T-shirts or skirts.

B、Just some warm clothing such as sweaters or coats.

C、Both light clothing and warm clothing.  

D、Either light clothing or warm clothing.

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