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1、河南省安阳市2016-2017学年高二英语下学期期中试题第卷第一部分 阅读理解（共两节，满分40分）第一节 （共15小题；每小题2分，满分30分）阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中选出最佳选项，并在答题卡上将该项涂黑。 AMany animals recognize their food because they see it. So do humans. When you see an apple or a piece of chocolate you know that these are things you can eat. You can also use
2、other senses when you choose your food. You may like it because it smells good or because it tastes good. You may dislike some types of food because they do not look, smell or taste very nice. Different animals use different senses to find and choose their food. A few animals depend on only one of t
3、heir senses, while most animals use more than one sense.Although there are many different types of food, some animals spend their lives eating only one type. The giant panda eats only one particular type of bamboo. Other animals eat only one type of food even when given the choice. A kind of white b
4、utterfly will stay on the leaves of a cabbage, even though there are plenty of other vegetables in the garden. However, most animals have a more varied diet. The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diet of these animals will be different depending on the seas
5、on.Humans have a very varied diet. We often eat food because we like it and not because it is good for us. In countries such as France and Britain, people eat foods with too much sugar. This makes them overweight, which is bad for their health. Eating too much red meat and animal products, such as b
6、utter, can also be bad for the health. Choosing the right food, therefore, has become an area of study in modern life.1. From the text we can infer(推断) that humans and animals _.A. depend on one sense in choosing foodB. are not satisfied with their foodC. choose food in similar waysD. eat entirely d
7、ifferent food2. Which of the following eats only one type of food?A. The white butterfly. B. The small bird. C. The bearD. The fox.3. Certain animals change their choice of food when _.A. the season changesB. the food color changesC. they move to different placesD. they are attracted by different sm
8、ells4. We can learn from the last paragraph that _.A. food is chosen for a good reasonB. French and British food is goodC. some people have few choices of foodD. some people care little about healthy dietBRice plants normally grow well in still water. But most will die if they are completely underwa
9、ter for more than four days. Now, researchers have identified a gene（基因）that helps rice survive longer underwater. They say the discovery will lead to new kinds of rice plants that can survive flooding, and therefore reach their final aim, ensuring more dependable food supplies.Tests are now being d
10、one in Laos, Bangladesh and India. The researchers say experimental rice plants with the gene have survived underwater as long as two weeks. When flooding happens, most kinds of rice plants cannot get enough oxygen, carbon dioxide or sunlight. But the scientists say crop loss depends on several cond
11、itions. These include soil conditions and plant age. Others include the amount of time the plant is underwater and the amount of fertilizer（肥料）used on the crop.On a genetic（遗传的）map of rice, the scientists became interested in a group of three genes. They experimented with one of them, a gene known a
12、s Sub-One-A. They found that when this gene becomes very active, it improves the ability of rice to survive longer when rice is covered by water. They believe it succeeds because it affects the reaction to hormones（荷尔蒙）. They control the ability of a flooded plant to survive. Placing the gene into r
13、ice plants that are especially good for conditions in India, researchers say the genetically engineered plants not only survived but also produced good crops.The researchers are now trying to identify all the genes governed by the Sub-One-A gene. Being able to leave water on rice plants for an addit
14、ional week might also help farmers prevent the growth of weeds. Less weed growth around their crops would mean less need for herbicide（除草剂）chemicals.5. Crop loss depends on all the following conditions EXCEPT _.A. soil conditions and plant ageB. the amount of water the plant stands inC. the amount o
15、f fertilizer used on the cropD. the amount of time the plant is underwater6. What is the final aim of this research?A. To identify the gene that helps rice survive underwater.B. To increase the ability of rice to fight against floods.C. To help farmers spend less time removing weeds.D. To make sure
16、of enough food supplies.7. What does the underlined word “They” in Paragraph 3 refer to?A. Genes. B. The experiments. C. Genetically engineered plants. D. Hormones.8. What would be the best title for the passage?A. Rice research is going on in Laos and IndiaB. How to reduce the influence of floods on riceC. Gene researchers work on flood-resist
