The earth revolves a little more rapidly______it is closer to the sun.A.whetherB.whereasC.
The earth revolves a little more rapidly______it is closer to the sun.
A.whether
B.whereas
C.although
D.when
The earth revolves a little more rapidly______it is closer to the sun.
A.whether
B.whereas
C.although
D.when
In a telephone survey of more than 2,000 adults. 21% said they believed the sun revolved (旋转) around the earth. An【1】7% did not know which revolved around【2】. I have no doubt that; 【3】all of these people were 【4】in school that the earth revolves a-round the sun;【5】may even have written it【6】a test. But they never【7】their incorrect mental models of planetary (行星的) 【8】because their every day observations didn't support【9】their teachers told thern: People see the sun moving【10】the sky as morning turns to night, and the earth seems stationary (静止的)【11】that is happening.
Students can learn the right answers【12】heart in class, and yet never combined them【13】their working models of the world. The objectively correct answer the professor accepts and the 【14】personal understanding of the world can【15】side by side, each unaffected by the other.
Outside of class, the student continues to use the【16】models because it has always worked well【17】that circumstance. Unless professors address【18】errors in students' personal models of the world, students are not【19】to replace them with the【20】one.
(1)
A.excessive
B.extra
C.additional
D.added
Aluminum is found on earth mostly in the form. of______.
A.pure metal
B.bauxite
C.gold
D.liquid
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
It can be learned from the passage that about four billion years ago ______.
A. the earth was in molten state
B. the earth surface temperature was above 100℃
C. the earth surface temperature was below 100℃
D. rain water could remain on the earth
The sun warms the earth, ______ makes it possible for plants to grow.
A.this
B.that
C.as
D.which
What's the author's attitude towards the waste of the earth's resources ?
A.Negative.
B.Positive.
C.Neutral.
D.Enthusiastic.
______ with the size of the whole earth, the highest mountain doesn' t seem high at all.
A.When compared
B.Compare
C.While comparing
D.Comparing