（）要求包括政府在内的各行政机关做到言必行、行必果。A、合理行政 B、高效便利 C、诚实

用am, is或are填空

1. —What____your name?

    —My name____Linda.

2. —Hello! How____you?  

    —I____fine, thanks.

3. —What____ this in English?

    —It____a ruler.

    —What color____it?

    —It____green.

4. His name____ Bob.

5. Her first name____Jenny.

6. I____Mary. What____your name?

7. I____an English teacher.

8. You____my good friend.

9. We       in Class 1．Grade 7．

船舶的棱形系数越大，表明船舶（）。

A．水下船体形状在纵向上越肥胖

B．水下船体形状在纵向上越瘦削

C．水下船体形状在横向上越肥胖

D．水下船体形状在横向上越瘦削

     In 2008 and 2009 I published two articles researching a lull (停歇)in solar activity. At the time, there

appeared to be some disagreement among scientists as to what effect this might have on humancaused

global warming. Now climate scientists agree a less active sun won't have much of an effect.

     According to the reports from the IPCC, global climate is expected to warm between 4 and 10

degrees Fahrenheit by the year 2100. On the other hand, scientists show that  the reduction in radioactive

forcing due to low solar activity would reduce world temperature half a degree F if the lull in solar activity

lasted until the end of the 21 century.

     It is highly unlikely the current lull in solar activity  would have such a long period. "It is more likely that a new lull in solar activity would reduce the global temperature average of 0.2 Celsius by the end of

2100," commented Professor Stefan Rahmstorf, who was responsible for a study of a lull in solar activity

effects on climate at the Institute for Research on the Impacts of Climate Change in Potsdam.

     In short, this small forcing is likely to have little, if any, observable effect on humancaused global

warming,at most reducing the temperature increase to between 3.5 and 9.5 degrees F. The reason for

the small effect on temperature is due to the fact that the difference between solar activity highs and lows

changes solar output by less than one half of one percent. So the difference in the amount of energy

coming out of the sun between solar highs and lows isn't very large. The result is that the human forcing

on climate is many times larger than that caused by any natural difference in the sun.

     Generally if humancaused climate_change isn't controlled it can't be stopped by natural changes in the

sun.

1. What once caused the argument among scientists?

A. The reduction in world temperature.

B. That humans are responsible for global warming.

C. That humans are stronger than nature.

D. Whether the lull in solar activity has effect on humancaused global warming.

2. According to scientists, world temperature would fall a little if ________.

A. less CO2 is given off

B. more trees are planted

C. redioactive forcing becomes strong

D. the lull in solar activity lasts a long period

3. What can we learn from the passage?

A. The author is expert at writing science fiction.

B. The current lull in solar activity will last very long.

C. The power of humans is stronger than the sun on global warming.

D. The IPCC reported that world  temperature would fall greatly.

4. What do the underlined words "climate change" refer to?

A. The flood.

B. Global warming.

C. The earthquake.

D. Global environmental change.

5. What does the passage mainly talk about?

A. The effect of global warming.

B. An argument among scientists.

C. That humans are a cause of global warming.

D. That a less active sun cannot stop global warming.

6. 用30词左右概括文章大意

________________________________________________________________________

《春秋》

精炼中碳钢连浇1700线恒拉速温度范围是（）。

A.1530-1545

B.1535-1550

C.1545-1555

D.1550-1560