27.Paragraph A
28.Paragraph B
29.Paragraph C
30.Paragraph D
31.Paragraph E
32.Paragraph F
33.Paragraph G
34.Paragraph H
Questions 35-36
Answer the questions35-36and choose correct letterA,B,CorD.
35.What is the main composition ofwhite sandmade of according to the passage?
A Quartz
B Gypsum
C Lime
D Iron
10.Which one is not mentioned as a sand type in this passage?
A Linear
B Crescentic
C Overlap
D Star
Questions 37-40
Complete the summary using the list of words,A-Jbelow.
Write the correct letter,A-Jin boxes11-14on your answer sheet.
Crescentic is an ordinary11 on both Earth and Mars, apart from which, there are also other types of sand dunes. Different color of the sand reflects different components, some of them are rich in12 that can not be easily broken into clay. Sand dunes can “sing” at a level up to 115 decibels and generate sounds in different notes. Sand dunes can be able to13 at a certain level of sound intensity, and the different size of grains creates different14 of the sounds.
A quartz B shape C pressure
D tone E protection F category
G minerals H sing Ilab J direction
参考答案
27.i
28.v
29.x
30.vii
31.ix
32.ii
33.vi
34.iv
35.B
36.C
37.B
38.G
39.H
40.D