11月7日,太阳直射点的位置移动方向是

　　南北半球的季节相反,11-12月份在北半球是冬季,在南半球就是夏季.11月7日,历经一个月,"雪龙"号到达南极地区时是12月份,在当地的季节就是夏季.

on Wednesday, November the seventh

属于南极的夏季,即使温度很低

Today is Sunday,nov.7,today is cloudy.Today is Monday,November 8,today is a sunny day.Today is Tuesday,November 9,today is fine,shade.Today is Wednesday,November 10,scraping the north wind,rain.Today is Thursday,November 11th,Yin a light rain.Today is Friday,November 12,QingZhuanDuoYun.Today is Saturday,November 13,clear.

解题思路：根据嫦娥一号的周期和速率，由T=[2πr/v]，可得出轨道半径，根据万有引力提供向心力G

Mm

r2

＝m

v2

r

求出月球的质量．根据轨道半径可以得出月球的半径，根据半径得出月球的体积，从而可求出月球的平均密度．

A、因为不知道嫦娥一号的质量，所以无法知道月球与嫦娥一号的引力．故A、B错误．
C、已知周期T、速率v，根据v=[2πr/T]求出嫦娥一号的轨道半径，根据万有引力提供向心力G
Mm
r2＝m
v2
r，可得M＝
v2r
G，高度已知，则根据R=r-h得出月球的半径以及体积，从而知道密度．故C正确．
D、根据题目中的信息无法知道月球表面的物质结构．故D错误．
故选C．

点评：
本题考点： 万有引力定律及其应用．

考点点评： 解决本题关键会根据周期和速率，通过v=[2πr/T]求出轨道半径，以及掌握万有引力提供向心力GMmr2＝mv2r．

英国人会写 7th Nov.
美国人会写 Nov.7th
所以,你怎样写,但是,如果纯用数字表示,就会有一定的问题!所以月份,一定要用 月份的缩写来表达,这样的话,对方不会产生歧义.

在深圳和宁波都可以顺利看到猎户座,这个无所谓担心看不到猎户座.
所以要考虑的就是要选择一个没有城市灯光影响的地方,甚至连车灯的影响都很少或者没有的地方.
至于要不要选择在山上,那就看当地情况了.能的话当然好,能避开好多灯光.但是山上很冷啊,而且山上安全与否也要考虑,就看大家啦!

解题思路：根据万有引力引力提供向心力，得出加速度与中心天体质量和轨道半径的关系，从而求出向心加速度的比值．

根据G
Mm
r2＝ma得，a=[GM
r2，则
a1
a2＝

1/81

1
16＝
16
81]．故C正确，A、B、D错误．
故选C．

点评：
本题考点： 万有引力定律及其应用．

考点点评： 解决本题的关键掌握万有引力提供向心力这一理论，并能灵活运用．

12月23号后南半球是夏季,到达时12月7号就正是春季,故答案为B

AC
在南极圈之外（北）.
12月份了,南半球进入夏季.

A、因为不知道嫦娥一号的质量，所以无法知道月球与嫦娥一号的引力．故A、B错误．
C、已知周期T、速率v，根据v=
2πr
T 求出嫦娥一号的轨道半径，根据万有引力提供向心力 G
Mm
r 2 =m
v 2
r ，可得 M=
v 2 r
G ，高度已知，则根据R=r-h得出月球的半径以及体积，从而知道密度．故C正确．
D、根据题目中的信息无法知道月球表面的物质结构．故D错误．
故选C．

1
When sorrows come, they come not single spies,
But in battalions.
Give sorrow words; the grief that does not speak,
Whispers the o'er-fraught heart and bids it break.
Sorrow breaks seasons and reposing hours,
Makes the night morning, and the noontide night.
What private griefs they have, alas, I know not.
My grief lies all within,
And these external manners of lament
Are merely shadows to the unseen grief
That swells with silence in the tortured soul.
It easeth some, though none it ever cured,
To think their dolour others have endured.
I will instruct my sorrows to be proud
For grief is proud an't makes his owner stoop.
Day doth daily draw my sorrows longer,
And night doth nightly make grief's length seem stronger.
What's gone and what's past help
Should be past grief.
Feed on her damask cheek: she pined in thought,
And with a green and yellow melancholy
She sat like patience on a monument,
2
Stopping by woods on a snowy evening Robert Frost

Whose woods these are I think I know
His house is in the village though
He will not see me stopping here
To watch his woods fill up with snow
My little horse must think it queer
To stop without a farmhouse near
Between the woods and frozen lake
The darkest evening of the year
He give his harness bells a shake
To ask if there is some mistake
The only other sound's the sweep
Of easy wind and downy flake
The woods are lovely, dark and deep
But I have promises to keep
And miles to go before I sleep
我想我知道这是谁的森林,尽管那人远在乡村
他不会看到我停留于此,欣赏这片属于他的
被皑皑白雪覆盖着的林园
我的小马必定奇怪,为什么要驻足在这里——远离人烟
游荡在森林和冰冻的湖水之间,
在一年中最阴暗的夜晚,那人摇响了他的马铃
询问一切是否平安
却只有风儿吹过,雪片飘零
这森林如此迷人幽深,可是我已许下诺言：
在我沉入梦乡之前,还要再走上一段,
还要再走上一段.

3 My favorite poem by Frost:

Design

I found a dimpled spider, fat and white,
On a white heal-all, holding up a moth
Like a white piece of rigid satin cloth--
Assorted characters of death and blight
Mixed ready to begin the morning right,
Like the ingredients of a witches' broth--
A snow-drop spider, a flower like a froth,
And dead wings carried like a paper kite.

What had that flower to do with being white,
The wayside blue and innocent heal-all?
What brought the kindred spider to that height,
Then steered the white moth thither in the night?
What but design of darkness to appall?--
If design govern in a thing so small.


4
Dylan Thomas

Not really for me. I liked his "Before I Knocked", but unfortunately the wry sense of humor in this poem is more the exception than the rule. Too morbid, which is quite English; but the sober take-me-seriuosly earnestness is not English, at all. Because the English, from before Shakespeare's time, has been known for a paradoxically life-affirming graveyard humor. which is not shared by Dylan Thomas at all.

5
Edward Thomas: Rain

Rain, midnight rain, nothing but the wild rain
On this bleak hut, and solitude, and me
Remembering again that I shall die
And neither hear the rain nor give it thanks
For washing me cleaner than I have been
Since I was born into this solitude.
Blessed are the dead that the rain rains upon:
But here I pray that none whom once I loved
Is dying to-night or lying still awake
Solitary, listening to the rain,
Either in pain or thus in sympathy
Helpless among the living and the dead,
Like a cold water among broken reeds,
Myriads of broken reeds all still and stiff,
Like me who have no love which this wild rain
Has not dissolved except the love of death,
If love it be for what is perfect and
Cannot, the tempest tells me, disappoint.

6
[This is the answer to your prayer, 隽饴]

W. H. Davis: LEISURE

What is this life if, full of care,
We have no time to stand and stare?

No time to stand beneath the boughs
And stare as long as sheep and cows.

No time to see, when woods we pass,
Where squirrels hide their nuts in grass.

No time to see, in broad daylight
Streams full of stars, like skies at night.

No time to turn at Beauty's glance,
And watch her feet, how they can dance.

No time to wait till her mouth can
Enrich that smile her eyes began.

A poor life this if, full of care,
We have no time to stand and stare.



7
Byron: "So We'll Go No More a-Roving"


So we'll go no more a-roving
So late into the night,
Though the heart still be as loving,
And the moon still be as bright.

For the sword outwears its sheath,
And the soul outwears the breast,
And the heart must pause to breathe,
And love itself have rest.

Though the night was made for loving,
And the day returns too soon,
Yet we'll go no more a-roving
By the light of the moon.

8

This poem offers the rare combination of immediate appeal AND the potential for undiscovered depth, when you re-read it. For example, what is meant by these lines?
Haply I may remember,
And haply may forget.

There are different ways you may read into these two lines. Amazing