理工类单选集考试卷模拟考试_题_3

1、姓名：_ 班级：_ 学号：_-密-封 -线- 理工类单选集考试卷模拟考试_题考试时间：120分钟 考试总分：100分题号一二三四五总分分数遵守考场纪律，维护知识尊严，杜绝违纪行为，确保考试结果公正。1、sharks perform a service for earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)people frequently. but these fish perform a(52)service for

2、 earths waters and for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of disappearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into

3、 the same areas,(56)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to mistake a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean when the sun goes down or comes up. those are the(58)when sharks are

4、 looking for food. experts also say that bright colors and shiny jewelry may cause sharks to attack.a shark has an extremely good sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)produced by animals. these powerful(60)help sharks fred their food. s

5、harks eat fish, any(61)sharks, and plants that live in the ocean.medical researchers want to learn more about the sharks body defense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study the shark in hopes of finding a way to fight human disease.sharks ar

6、e important for the worlds(64). they eat injured and diseased fish. their hunting activities mean that the numbers of other fish in ocean waters do not become too(65). this protects the plants and other forms of life that exist in the oceans.（ ）a.attackb.meetc.loved.visit2、sharks perform a service f

7、or earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)people frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of disap

8、pearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to mista

9、ke a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean when the sun goes down or comes up. those are the(58)when sharks are looking for food. experts also say that bright colors and shiny jewelry may cause sharks to attack.a shark has an extremely go

10、od sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)produced by animals. these powerful(60)help sharks fred their food. sharks eat fish, any(61)sharks, and plants that live in the ocean.medical researchers want to learn more about the sharks body d

11、efense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study the shark in hopes of finding a way to fight human disease.sharks are important for the worlds(64). they eat injured and diseased fish. their hunting activities mean that the numbers of other fis

12、h in ocean waters do not become too(65). this protects the plants and other forms of life that exist in the oceans.（ ）a.terribleb.eatablec.valuabled.possible3、sharks perform a service for earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)

13、people frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of disappearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)thei

14、r warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to mistake a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean when the s

15、un goes down or comes up. those are the(58)when sharks are looking for food. experts also say that bright colors and shiny jewelry may cause sharks to attack.a shark has an extremely good sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)produced by

16、 animals. these powerful(60)help sharks fred their food. sharks eat fish, any(61)sharks, and plants that live in the ocean.medical researchers want to learn more about the sharks body defense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study the shark

17、in hopes of finding a way to fight human disease.sharks are important for the worlds(64). they eat injured and diseased fish. their hunting activities mean that the numbers of other fish in ocean waters do not become too(65). this protects the plants and other forms of life that exist in the oceans.

18、（ ）a.sourceb.existencec.friendsd.fish4、sharks perform a service for earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)people frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport fi

19、shing are threatening their(53). some sharks are at risk of disappearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks do

20、not purposely charge at or bite humans. they are thought to mistake a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean when the sun goes down or comes up. those are the(58)when sharks are looking for food. experts also say that bright colors and shi

21、ny jewelry may cause sharks to attack.a shark has an extremely good sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)produced by animals. these powerful(60)help sharks fred their food. sharks eat fish, any(61)sharks, and plants that live in the oce

22、an.medical researchers want to learn more about the sharks body defense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study the shark in hopes of finding a way to fight human disease.sharks are important for thelb.skyc.landd.earth5、sharks perform a servi

23、ce for earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)people frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of d

24、isappearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to m

25、istake a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean when the sun goes down or comes up. those are the(58)when sharks are looking for food. experts also say that bright colors and shiny jewelry may cause sharks to attack.a shark has an extremel

26、y good sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)produced by animals. these powerful(60)help sharks fred their food. sharks eat fish, any(61)sharks, and plants that live in the ocean.medical researchers want to learn more about the sharks bo

27、dy defense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study the shark in hopes of finding a way to fight human disease.sharks are important for the worlds(64). they eat injured and diseased fish. their hunting activities mean that the numbers of other

28、 fish in ocean waters do not become too(65). this protects the plants and other forms of life that exist in the oceans.（ ）a.becauseb.sincec.because ofd.by reason that6、sharks perform a service for earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thoug

29、ht to(51)people frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of disappearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal area

30、s(55)their warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to mistake a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean w

31、hen the sun goes down or comes up. those are the(58)when sharks are looking for food. experts also say that bright colors and shiny jewelry may cause sharks to attack.a shark has an extremely good sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)pr

32、oduced by animals. these powerful(60)help sharks fred their food. sharks eat fish, any(61)sharks, and plants that live in the ocean.medical researchers want to learn more about the sharks body defense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study t

33、he shark in hopes of finding a way to fight human disease.sharks are important for the worlds(64). they eat injured and diseased fish. their hunting activities mean that the numbers of other fish in ocean waters do not become too(65). this protects the plants and other forms of life that exist in th

34、e oceans.（ ）a.whoseb.whichc.thatd.where7、sharks perform a service for earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)people frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport

35、fishing are threatening their(53). some sharks are at risk of disappearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks d

36、o not purposely charge at or bite humans. they are thought to mistake a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean when the sun goes down or comes up. those are the(58)when sharks are looking for food. experts also say that bright colors and s

37、hiny jewelry may cause sharks to attack.a shark has an extremely good sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)produced by animals. these powerful(60)help sharks fred their food. sharks eat fish, any(61)sharks, and plants that live in the o

38、cean.medical researchers want to learn more about the sharks body defense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study the shark in hopes of finding a way to fight human disease.sharks are important for the worlds(64). they eat injured and disease

39、d fish. their hunting activities mean that the numbers of other fish in ocean waters do not become too(65). this protects the plants and other forms of life that exist in the oceans.（ ）a.tob.forc.liked.with8、sharks perform a service for earths watersit is hard to get people to think of sharks as any

40、thing but a deadly enemy. they are thought to(51)people frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of disappearing from(54).warm weather may influence both fish and shark ac

41、tivity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to mistake a person(57)a sea animal, such as a seal or sea lion. that is w

42、hy people should not swim in the ocean when the sun goes down or comes up. those are the(58)when sharks are looking for food. experts also say that bright colors and shiny jewelry may cause sharks to attack.a shark has an extremely good sense of smell. it can find small amounts of substances in wate

43、r, such as blood, body liquids and(59)produced by animals. these powerful(60)help sharks fred their food. sharks eat fish, any(61)sharks, and plants that live in the ocean.medical researchers want to learn more about the sharks body defense, and immune(62)against disease. researchers know that shark

44、s(63)quickly from injuries. they study the shark in hopes of finding a way to fight human disease.sharks are important for the worlds(64). they eat injured and diseased fish. their hunting activities mean that the numbers of other fish in ocean waters do not become too(65). this protects the plants

45、and other forms of life that exist in the oceans.（ ）a.timesb.placesc.seasd.oceans9、sharks perform a service for earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)people frequently. but these fish perform a(52)service for earths waters and

46、 for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of disappearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into the same areas,(5

47、6)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to mistake a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean when the sun goes down or comes up. those are the(58)when sharks are looking for food.

48、 experts also say that bright colors and shiny jewelry may cause sharks to attack.a shark has an extremely good sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)produced by animals. these powerful(60)help sharks fred their food. sharks eat fish, an

49、y(61)sharks, and plants that live in the ocean.medical researchers want to learn more about the sharks body defense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study the shark in hopes of finding a way to fight human disease.sharks are important for th

50、e worlds(64). they eat injured and diseased fish. their hunting activities mean that the numbers of other fish in ocean waters do not become too(65). this protects the plants and other forms of life that exist in the oceans.（ ）a.sciencesb.mathematicsc.chemicalsd.physics10、sharks perform a service fo

51、r earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)people frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of disapp

52、earing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to mistak

53、e a person(57)a sea animal, such as a seal or sea lion. that is why people should not swim in the ocean when the sun goes down or comes up. those are the(58)when sharks are looking for food. experts also say that bright colors and shiny jewelry may cause sharks to attack.a shark has an extremely goo

54、d sense of smell. it can find small amounts of substances in water, such as blood, body liquids and(59)produced by animals. these powerful(60)help sharks fred their food. sharks eat fish, any(61)sharks, and plants that live in the ocean.medical researchers want to learn more about the sharks body de

55、fense, and immune(62)against disease. researchers know that sharks(63)quickly from injuries. they study the shark in hopes of finding a way to fight human disease.sharks are important for the worlds(64). they eat injured and diseased fish. their hunting activities mean that the numbers of other fish

56、 in ocean waters do not become too(65). this protects the plants and other forms of life that exist in the oceans.（ ）a.feelingsb.sensesc.touchesd.tastes11、sharks perform a service for earths watersit is hard to get people to think of sharks as anything but a deadly enemy. they are thought to(51)peop

57、le frequently. but these fish perform a(52)service for earths waters and for human beings. yet business and sport fishing are threatening their(53). some sharks are at risk of disappearing from(54).warm weather may influence both fish and shark activity. many fish swim near coastal areas(55)their warm waters. experts say sharks may follow the fish into the same areas,(56)people also swim. in fact, most sharks do not purposely charge at or bite humans. they are thought to mistake a person(57)a sea animal, such as a seal or sea lion. that is why peopl