GRE考试《阅读理解》模拟练题5

>>GRE阅读：GRE考试《阅读理解》模拟练题5

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河生雌鳚鱼选择巢穴

When selecting a nest, the female of the river blenny (a small fish) appears to be sensitive to both size and orientation. Blennies deposit their eggs preferably in nests under large stones and in nests facing southeast. Southeast-facing nests contain larger egg clutches, a fact that cannot be completely explained by differences in nest stone sizes. Moreover, in a recent study, current speeds upstream of the nest and at the nest entrance were similar for nests facing southeast and those facing in other directions. A southeast-facing entrance per se thus seems to be the specific nest feature preferred by females, rather than the effect of selective positioning on current at nest entrance. The reasons for this preference are unclear, however.

1. The passage is concerned with which of the following

A. Determining the different ways in which current speeds can influence the nesting preferences of female river blennies

B. Establishing nest orientation as a determining factor in egg laying among female river blennies

C. Questioning the importance of nest size as an influence on egg laying among female river blennies

D. Comparing the features of female river blennies that face southeast with those of nests facing in other directions

E. Examining how female river blennies determine the relative importance of nest size versus nest orientation

2. The author of the passage considers “current speeds” in order to

A. identify a factor that undermines the significance of nest stone size for female river blennies

B. indicate one possible advantage of river blenny nests that do not face southeast

C. eliminate a possible explanation for a nest orientation tendency among female river blennies

D. indicate why female river blennies are sensitive to both size and orientation of possible nests

E. suggest a reason why many female blennies prefer southeast-facing nests

1

When selecting a nest, the female of the river blenny (a small fish) appears to be sensitive to both size and orientation.

选择巢穴时，河生雌鳚鱼(一种小鱼)似乎对大小和朝向都有挑剔。

鳚 [blenny]

鲈形目鳚亚目许多种鱼类的统称。大多体型小，海产，广布于热带到寒带海域。体细长如鳗。生活于各种生境，包括岩潭、沙滩、礁盘和藻床。多数生活于浅水，但有些可深至水下450米处。有些主要为草食性，有些则部分或完全为肉食性。一般为底栖，没有多少经济价值。

(大英袖珍百科)

Australian blenny (Ecsenius axelrodi) in East Timor.

2

Blennies deposit their eggs preferably in nests under large stones and in nests facing southeast.

鳚鱼更喜欢把卵产在大石下以及朝向东南的巢中。

3

Southeast-facing nests contain larger egg clutches, a fact that cannot be completely explained by differences in nest stone sizes.

产在朝向东南的巢中的卵更大，这无法用巢的大小完全地解释。

4

Moreover, in a recent study, current speeds upstream of the nest and at the nest entrance were similar for nests facing southeast and those facing in other directions.

此外，最近一项研究显示东南朝向与其他朝向，巢受水流冲刷的速度与巢口的水流速度都相近。

(这里翻译不是很确定，坦白一下我的想法。

upstream 逆流的，向上游的

upstream of the nest 我理解为，巢是不动的，upstream of the nest 指水流冲刷巢，也就是那块石头的速度

有不同理解请留言指导我)

5

A southeast-facing entrance per se thus seems to be the specific nest feature preferred by females, rather than the effect of selective positioning on current at nest entrance.

所以，入口西南朝向本身，似乎是雌鱼择巢的特征，而不是因为巢口水流速度而选择巢口的朝向。

6

The reasons for this preference are unclear, however.

然而，这种偏好的原因仍未探明。

1. The passage is concerned with which of the following

A. Determining the different ways in which current speeds can influence the nesting preferences of female river blennies

B. Establishing nest orientation as a determining factor in egg laying among female river blennies

C. Questioning the importance of nest size as an influence on egg laying among female river blennies

D. Comparing the features of female river blennies that face southeast with those of nests facing in other directions

E. Examining how female river blennies determine the relative importance of nest size versus nest orientation

选 B

确定巢的朝向是河生雌性鳚鱼产卵的决定因素。

establish 此处解释为 确定、证实。

A 错。句 5 告诉我们，水流速度没啥区别 similar 。

C 错。文章没有质疑大石偏好，只在句 2 提了一下：Blennies deposit their eggs preferably in nests under large stones and in nests facing southeast.

D 错在 features of female river blennies，没有讨论鱼，只讨论了巢，水流什么的。

E 错。没有比较两种因素哪个更重要。

2. The author of the passage considers “current speeds” in order to

A. identify a factor that undermines the significance of nest stone size for female river blennies

B. indicate one possible advantage of river blenny nests that do not face southeast

C. eliminate a possible explanation for a nest orientation tendency among female river blennies

D. indicate why female river blennies are sensitive to both size and orientation of possible nests

E. suggest a reason why many female blennies prefer southeast-facing nests

选 C

去掉一种可能的解释。

需要读懂整段才能做对：

鱼产卵有两种偏好，大石头，开口朝东南。文段着重讨论了开口朝向的问题，但也只能通过实验推出，鱼这么选跟水流速度无关，至于真正的原因，目前还不知道。

综上，选 C 。

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