is nearest to the Earth
is farthest from the Earth
is on the opposite side of the Earth from the Moon
and Moon and Earth are in line
第1题:
I have reached a point in my lifeI am supposed to make decisions of my own.
A whichB where C how D why
第2题:
The article suggests that______.
A. our earth exists before the sun
B. how space formed
C. no one knows where the earth comes from
D. our earth used to be part of a high mountain on the sun
48.答案为D 从最后一段及its tidal pull had become so powerful that this mountain was torn to pieces and threw off small parts of itself into space可推断地球也是在太阳爆炸的小碎片中形成的。
第3题:
A.Where is the point of
B.where is the point as for
C.What is the point of
D.What is the point for
第4题:
第5题:
The maximum difference between mean time and apparent time is ______.
A.equal to the longitude expressed in time units
B.about 16 minutes
C.the difference between the GHA of mean sun and the first point of Aries
D.15°of arc
第6题:
D
Find Which Direction Is South
Do you have a good sense of direction? If not, please take with you a compass. But if you forget to take a compass, you can still find your way.
It’s never a good idea to imagine that the family member who was entrusted(委托)with the job of map-reading actually knows where the family is. You can tell by the slightly confused load on their faces that nothing on the ground seems to match the map. Never mind. The sun is shining and it’s still morning. If you don’t know the exact time, you can still find out where south is, but you’ll need to be patient.
①Find a straight sick and put it in the ground in a place where you can mark its shadow.
②Try to position the stick as vertically(垂直)as you can. You can check this by making a simple plumb line (铅锤线)with a piece of string and weight. You haven’t got any string? OK, use a thread from your clothes with a button tied at the end to act as a weight.
③Mark the end of the shadow cast by the stick.
④Wait approximately half an hour and mark the end of the shadow again.
⑤Keep doing this until you have made several marks.
⑥The mark nearest the stick will represent the shortest shadow, which is cast at midday, when the sun is highest in the sky and pointing to the exact south.
⑦Pick a point in the distance along the line between the shortest shadow and the stick.
⑧That point is south of where you are.
⑨Now you can turn the map, like you did before, and find which way you should be travelling.
68. To find the direction, we ought to be patient probably because
A. it is not easy to find a proper stick B. it is not easy to position the stick
C. it takes hours to make the marks D. it takes about half an hour to make the marks
第7题:
The insert point or( )show you where can enter date next .
A.icon
B.cursor
C.menu
D.button
第8题:
A.when
B.what
C.that
D.where
第9题:
Where do fatigue failures of wire rope mooring lines usually occur ________.
A.In the middle part of the line length
B.Near the socketed end fitting adjacent to the anchor
C.At the point where the line touches the bottom
D.At the place the anchor buoy is attached to the line
第10题: