[单选题]The word "deteriorated" in paragraph2 means _____.
A.deepened
B.suffered
C.slipped
D.worsened

[单选题]The word "stand" in Paragraph 2 means_____.
A.handle
B.meet
C.combine
D.bear

[单选题]The word "conditions" in paragraph 2, line 9 is closet in meaning to__________.
A.statuses
B.appearances
C.demands
D.qualities

[单选题]Paragraph 2
A.Competing Explanations
B.Unknown Attacks
C.Mysterious Explosion
D.Star War
E.Importance of Finding Evidence
F.Explanation that Worries Scientists

[单选题]The word "springs" in Paragraph 3 means
A.a small stream of water flowing naturally from the earth.
B.the season of the year，occurring between winter and summer.
C.the act or an instance of jumping or leaping.
D.a length of metal wound around，which returns to its original shape after being pushed.

[不定项选择题]The word "gulf" in the passage means__________.
A.deep understanding between the old and the young
B.different ideas between the mother and the daughter
C.free talks between mother and daughter
D.part of the sea going far in land

[单选题]WTO means World（　　）Organization．
A.Trade
B.Tariff
C.Tangier
D.Criterion

[单选题]Creating WBS means subdividing the major project deliverables into smaller components until the deliverables are defined to the （ ） level．
A.independent resource
B.individual work load
C.work milestone
D.work package

[单选题]If a teacher teaches grammar mainly by means of oral repetition and substitution，he/she mostly probably adopts ( )
A、 the grammar-translation method

A.the audio-lingual approach
B.

C.the communicative approach

D.the natural approach

[单选题]Country of origin means the country ( ).
A.that sells the goods
B.where the goods are shipped
C.that buys the goods
D.where the goods are produced

[单选题]The mobility of cell phones means you can be anywhere and have the____or should I say the convenience, of a phone.
A.must
B.accompaniment
C.conclusion
D.necessity

[单选题]The new communication system is by no means a minute invention.
A.small
B.accidental
C.significant
D.timely

[不定项选择题]共用题干 Seeing Red Means Danger Ahead

The color red often means danger一and by paying attention,accidents can be prevented.In the future,
the color red also may help_________（51)danger at construction sites.Thanks to new work by engineers,
bridge supports一or________(52)kinds of materials一could one day contain a color-changing material.It
will turn red_________(53)a structure collapses or falls apart.
The secret__________(54)the color-switching material is。particular typo of molecule（分子）.A mole-
cule is a group of atoms（原子）held together by chemical bonds. Molecules come_________(55)all shapes
and sizes,and make up __________ (56)you can see,touch or feel.How a molecule behaves depends on
_________(57) kinds of atoms it contains,and how they're held together.
When a polymer(聚合物）containing a color-changing molecule called a mechanophore (机械响应性聚
合物）which is about to break,it produces a_________(58).When a polymer with mechanophore molecules
becomes" injured" or__________(59),one of the mechanophore bonds________（60）and the material turns
red."It'S a really simple detection method,"says Nancy Sottos,one of the scientists who worked on the pro-
ject.Sottos and her team tested the color-changing polymers in their lab.The test_________(61)proved
encouraging,
There is a way to get rid of the red color:light. When a bright light is shone on the mechanophore,the
broken bond is fixed,and the red color________(62).This"self-healing"may be a problem for mngi-
neers.They need to use the color-changer in big construction projects that will be_________(63)in sun-
light. And sunlight will make the rnechanophore'S warning system______(64).
Sottos and her fellow scientists still have _________(65)work to do before the color-changing mole-
cules can be used outside the lab. _________(65)
A.a pair of
B.a type of
C.a lot of
D.a part of