</p>第4部分：阅读理解(第31～45题，每题3分，共45分)下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。7 i1 _9 x8 ^2 X! U& w
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1 k1 z/ G% c& M/ O) g% B31. What determines your weight?
% B5 _, p/ _7 Z) A% |5 fA. Your working manner. 1 Z6 I: G3 g/ H
B. Your eating habit.
- K+ \* B+ S7 b' R' YC. Your life style.
}$ v; v: }% A' N: k) ~1 k3 y: {D. Your genes.
1 c# K* h8 O1 k! ?! j32. What did Jules Hirsch do in his study?
# J& Q* R2 r3 z6 E; VA. He let the eight fat people skip supper. / E. M6 F. ^8 T7 s4 G4 h& G5 t! y* S
B. He let the eight fat people skip breakfast.) f }+ R3 I2 a' ~4 r3 S6 C
C. He let the eight fat people run every morning and evening." m$ ^- ?$ L! V7 K' Z. a
D. He gave the eight fat people a liquid formula providing 600 calories a day.& z' L" S+ s7 {; P F" }
33. What happened to the eight fat people after they left the hospital?
* P: T0 P7 F G' `" IA. They went mad.
( g0 f$ e! A: s Y7 CB. They killed themselves.3 p a+ v: z- Q: e! r: m
C. They were back to normal weight.
( P0 C! d4 k2 n$ _% d1 oD. They attempted suicide, }+ q- V, |1 J" _8 E6 C
34. What did Ethan Sims make his subjects do?
7 I" j# O7 M6 |& \: KA. Battle their genetic inheritance.* Q. b; X5 e( K' F4 t2 W5 }8 P* G
B. Increase their weight.
( v/ d; x. e) e. R2 DC. Stay at home.5 q9 T# T" ^ K: @! [
D. Lower their weight.. {6 J4 [* A) a: M2 a" r5 w3 G4 J$ O# ]
35. What did scientists think was true?+ ?9 o, m- A3 ]) X9 u! f! t/ U* H
A. Each person has a fixed weight range.
* G$ g4 `7 S3 l3 x0 N9 x# hB. Each person has a weight range of 9 kg. ( D+ }+ x" A* f' D) m% C% \: \
C. Each person wants to control his weight.
# q8 l* u. f1 y" r4 W+ _D. Each person wants to eat to his heart's content., K- c6 u c3 i, J& u
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36. Something destructive could happen to a star that gets too close to a black hole. Which of the following statements is NOT mentioned in the passage?( F+ X% {( L6 C
A. The black hole could tear apart the star.* b" R' ]7 F3 |4 T9 x
B. The black hole could trigger a nuclear explosion in the star.
) r8 K7 ^3 I* Z9 H, u. A2 yC. The black hole could dwindle its size considerably.9 M& h) T: H; k9 |" ?
D. The black hole could devour the star.$ l" H+ {6 n: T9 J
37. According to the third paragraph, researchers differed from each other in the problem of , m ^8 w. f( k' e& _1 M1 C/ V
A. whether nuclear reaction would occur.9 g7 `1 S& a) N, ~! a; f/ G" r
B. whether the stars would increase its density and temperature.
$ n9 n: Y7 W- p+ eC. whether shock waves would occur.
8 o4 z8 Q1 |9 w* z, ^D. whether the uneven forces would flatten the stars./ y8 h9 i; l6 r: \& g- I D" w V
38. According to the fourth paragraph, which of the following is NOT true?
. i- { _1 t3 \7 N8 m8 x2 ?1 m, fA. No nuclear explosion would be triggered inside the star.- L: |4 w6 J' a. M; p$ l) @. o
B. The star would be destroyed completely.* ^: @+ ^ E* F6 `7 F7 @( y% S
C. Much of the star's matter thrown by the explosion would be beyond the black hole's reach. 6 z" w: P: Q9 _# T* P$ |
D. The black hole would completely devour the star.8 Q* v6 [ Z. w$ N C8 G4 K
39. What will happen several months after the explosion of the star? , n4 S6 G7 \; `( x
A. The star's matter will move further away from by the black hole. - i! Q/ d. L5 l1 Q) S s2 @! q1 z
B. The black hole's matter will heat up.5 a; h' [6 b4 W9 `- I! C
C. The black hole's matter will swirl into the black hole.
8 j1 L9 y5 @0 V% g a9 VD. The black hole's matter will release ultraviolet light and X-rays.* a2 D# O4 x$ v5 l
40. According to the context, the word "disruption" in paragraph 6 means
e$ F; \' e6 x2 {/ t; Y3 @A. confusion. 2 u6 V+ G; C/ x% n8 H! f2 p5 U# T
B. tearing apart. 5 \) T2 A8 k/ D! a3 y; c4 p
C. interruption.6 A2 `3 N) I. ]
D. flattening.6 K4 t( s* `2 N# N$ t' P
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41. What is the mystery that researchers find hard to explain?
7 N! E! Y( K) k4 n8 N" rA. Honeybees are flying all across the country.
X3 C) O, w6 o% R, S$ vB. 25—40 percent of the honeybees in the US have died. 9 P5 }) t) i" d+ V3 c7 o
C. Honeybees are leaving their hives and do not return. - y9 s0 P; b1 i+ p t( y
D. Honeybee hives are in disorder.) u+ L" Y" ]1 f) t ~
42. Why are researchers seriously concerned with the phenomenon of colony-collapse disorder?
7 d* E' W( R9 s* M; ~A. Because honeybees produce one-third of the foods we eat ' p3 V* l+ r- }5 n* e9 ~' s
B. Because honeybees feed on flowers.
& w j& B1 d2 h# {9 B5 [! uC. Because honeybees eat seeds of flowers. + b' R2 |2 P6 H# d6 x4 W* W
D. Both B and C.
# D4 p. w7 Q' S Z/ |) P43. What are the possible causes of colony-collapse disorder given by the scientists? + H( O+ C/ y2 d5 o1 D" C Q
A. Worsening environment.
* S7 C7 J) ]9 F7 {% D2 pB. Disease and chemicals.. P8 u4 ?: {# m F8 `* \6 I
C. Dwindling number of flowers around. 1 @ e3 w$ F p
D. Changes in genes' structures.% w7 ~+ o0 p% C8 w) o
44. According to the fifth paragraph, which of the following about bees' genes is true?
4 h! e' j. ?& ?; R( H7 LA. Bees' genes allow them to expand their colonies.2 X& T1 N( i& [
B. Bees' genes help keep them in their hives., {; f, }/ @& X5 _ |6 m
C. Bees' genes make them fly from flower to flower.
8 o0 Q, s9 Z+ ] ^D. Bees' genes could explain the collapse of some colonies." a* K" q: O3 n$ }) f
45. What explanation is given by Jerry Hayes to the phenomenon?
1 V2 E1 q, L5 x; i* J! L. mA. Farmers apply certain chemicals to kill unwanted bees.
* |" J( a5 a9 W V4 [2 xB. The insecticide destroys the honeybee's nervous system.
/ L L! I3 I/ \4 a0 ~* AC. The insecticide affects the honeybee's memory./ o3 ?% P1 O8 G5 z
D. All of the above. |
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