41.
0 {) n- [/ a4 _ （a） a regular class will be given.% ]; K/ |6 Z4 G5 C
（b） an optional review class will be given.. Q8 p, D! N8 D7 ~7 s) b1 ~& M% q
（c） an exam will be given.
$ c/ |" w4 O4 h% R （d） class will be canceled.$ ]2 z4 S) A8 Z8 p, X
42./ t, p1 r) T6 M: h8 k B' f
（a） rock formations in the nevada desert.% p; U3 ]+ U* t3 |3 p/ D$ b5 _
（b） graduate studies in anthropology.; r" S: ]0 }; x# S/ J; }
（c） excavation techniques used in archaeology. O( _' O4 H( W$ }% u
（d） prehistoric desert people of nevada.6 ^2 c1 S, ]8 Z! d: g
43.5 m( I% G5 X5 V2 _; z; C0 N) J
（a） they planned their migrations.- u. C/ H8 ] z+ E3 \6 [! M) `4 ^3 J
（b） they didn't travel far from their base camps.
; s7 ]4 f' U% Y （c） they hid from their enemies in caves.; H; v. @( P- b G# Q0 w) v
（d） they planted seeds near their camps.
0 u8 y( R- b# |9 H7 o 44.% O9 F2 q9 |8 ~" H
（a） they had trouble finding it.
% S( |+ _+ L) X （b） lack of light made it impossible.6 z5 ]3 ^; u" k' D6 D# [2 o
（c） it was too small for a group to fit into./ F: n9 d* G0 P
（d） items stored by others took up most of the space.
3 |: y- X( `0 z9 S* E0 U 45.9 {4 N3 T* D s! ~8 d, b- }
（a） prehistoric desert people.
( F' |- E o% m （b） migratory animals.& C* t1 `$ t' R5 x, n5 i# o
（c） food supplies and tools.
* v3 _: }2 u' _6 n （d） growing plants.; ~' K$ t+ n( J( n
46.: I' U. P1 N& N" D9 r8 ]
（a） to illustrate the size of some objects.
2 A# w4 X0 g% O( r5 X% u+ \6 q1 x （b） to introduce the next assignment.
$ ?* U8 c7 w" U （c） to show some artifacts on display at the campus museum.% `' T3 j3 t8 V" h
（d） to demonstrate his photographic ability./ Q+ y& z% }: b$ r" L# p; L+ n1 r
47.
& w- S5 \% w5 t G& B) I) z* ^5 o （a） a comparison of fish to warm-blooded animals. x9 _$ H( Q" i2 z; X9 x
（b） the difference between saltwater and freshwater environments.
0 h/ X0 O" O1 H5 j5 E( O+ U （c） the importance of fish to human beings.
. z/ j1 A& u% O （d） how water has affected the development of fish.
: @% g( _& N7 i: d0 ? 48.4 Q4 b, ~' I4 p3 M7 k9 E
（a） it can' t be compressed.& _) ?1 h, t& C, ]5 b9 `- _
（b） it is often polluted.5 l1 g9 R1 @; A$ @' x' E3 \
（c） its temperature often fluctuates dramatically.
3 y! g& J' q$ C w/ y# q3 v （d） it limits their size.
+ e4 _& P9 C, h 49.
: N0 Y- g6 f: C9 ]0 y （a） a whale.
) S2 P2 I9 Y0 |" X' b( d （b） a human.
+ T4 @) u# G$ _8 q3 l5 F$ I （c） a snake.( \3 S+ p: l; q9 y8 l
（d） a snail.
4 D7 x5 P1 c' s4 w4 \: e 50.
# S- @. w; @0 r （a） its skeleton.
' n5 G2 t2 B' Y! M& c8 N& | （b） its shape.
8 l6 ^1 t6 S& D/ G ~ （c） its senses.7 y) c7 [& w2 B
（d） its body temperature. |
发表于 2012-8-15 00:04:42
