GRE习题练习
| GRE考试易错题（2019/6/25） |
| 第1题： With the continuing accomplishments of the human genome project, ambitious strategies to identify DNA sequences that are important in mammalian gene regulation are becoming increasingly -------. A．(A) stellar B．(B) feasible C．(C) prominent D．(D) intrusive E．(E) utile |
| 【单选题】： |
| 第2题： This section includes three types of questions: QuantitativeComparison,Discrete Problem Solving, and NumericEntry. For each question, circle the letter of your choice or write your answer as instructe D、 Directions for QuantitativeComparison Questions: Some of the following questions give you two quantities, one inColumnA、and one inColumnB,Compare the two quantities and choose one of the following answer choices: A．if the quantity inColumnA、is greater; B．if the quantity in columnB、is greater; C、if the two quantities are equal; D、if you cannot determine the relationship based on the given information  |
| 第3题： Line cartoon character YogiBear. The cartoon series enjoyed by young and old alike revolved mostly around the misadventures of this loveable bear and his sidekickBoo-Boo as they attempted to snag "pic-a-nic" baskets in the made-up (5) land of Jellystone Park. It’s not often that people think about where the ideas for these cartoon characters came from, which brings up an interesting point:Do bears actually search for food left in picnic baskets and unattended campsites Anyone who has watched an episode of the classic cartoon can see that the bears’ behavior goes far beyond the limits of what is natural. The thing that must be (10) explored, then, is which of those humorous antics were imagined by the writers at Hanna-Barbera, and which were actually based on a bear’s normal behaviors. Remarkably enough, bears have been known to seek out food from some unlikely sources, including picnic baskets, to supplement their usual diet of berries, insects, and fish.Bears work throughout the summer and fall to build up fat stores (15) to have energy enough to last them through their winter hibernations. Related to this is their need to replenish their depleted reserves when they wake up in the spring. Food is generally scarce in the early spring and consequently the bears will gladly indulge in any foods that are high in proteins or fats. This is the main reason for any incidents involving bears after they enter campsites in search of fooD、 (20)Although this behavior may seem strange, it is merely the result of nature equipping the bears with a variety of traits that allow them to remain well fed in increasingly human-populated habitats. Specifically, theAmerican black bear, Ursus americanus, has color vision, which most other animals lack.Black bears have been observed by scientists using this unique enhancement to distinguish (25) between varying food items at close range. On top of this, bears have an acute sense of smell and can use their especially sensitive lips to locate fooD、These sensory talents contribute to the bears’ remarkably high intelligence and curiosity, giving them the ability to open closed containers if they believe food is inside. Their exploratory and navigational skills are also worthy of note—most bears will (30) maintain vast territories to be sure they can obtain food from a variety of sources. Bears may even vary their sleep cycles in areas where there is a large degree of human activity, either feasting on road-side garbage during the day or scouring campsites for leftovers at night. |
