小学下册第三次英语第2单元真题(含答案)

小学下册英语第2单元真题(含答案)
英语试题
一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)
1.What is the first letter of the alphabet?
A. A
B. B
C. C
D. D答案: A
2.The discovery of ________ has had extensive implications for health.
3.What is the capital of the Philippines?
A. Manila
B. Cebu
C. Davao
D. Quezon City答案:A.Manila
4.The _____ (小羊) bleats when it is hungry.
5. A __________ is a chemical reaction that produces gas.
6. A ____ is a small mammal that loves to dig.
7. A __________ (电气传导) is important for understanding ionic compounds.
8. A ______ (植物的生长周期) informs agricultural practices.
9.What is the capital city of Japan?
A. Beijing
B. Seoul
C. Tokyo
D. Bangkok答案: C. Tokyo
10.The bread is _____ (fresh/stale).
11.My brother plays the ________.
12.He is very ___. (smart)
13.What is the name of the famous American singer known as the "King of Rock and Roll"?
A. Elvis Presley
B. Chuck Berry
C. Little Richard
D. Buddy Holly答案:A
14.We have a ______ (快乐的) celebration for birthdays.
15.We should _______ (关心) our elders.
16.The ________ is a colorful friend that brings happiness.
17.The main gas that contributes to air pollution is __________.
18.What is the name of the famous mouse created by Walt Disney?
A. Donald Duck
B. Mickey Mouse
C. Goofy
D. Bugs Bunny答案: B
19.What is the capital of Uganda?
A. Kampala
B. Nairobi
C. Kigali
D. Dar es Salaam答案: A
20.Which animal is known as the king of the jungle?
A. Lion
B. Tiger
C. Bear
D. Elephant答案:A
21.My favorite season is ______ (winter).
22. A _______ (海马) swims in a unique way.
23.Which of these is a vegetable?
A. Apple
B. Carrot
C. Banana
D. Grape答案: B
24.My dog loves _______ (去公园) for walks.
25.根据文意和图示选单词,并将单词规范地书写在四线格内。

26.I like to ______ my friends on weekends. (meet)
27.The ______ helps regulate temperature in the body.
28. A saturated solution contains the maximum amount of _______ that can dissolve.
29.The process of chromatography separates mixtures based on _____.
30.The cat sleeps on the _____.
31.The scientist, ______ (科学家), experiments in the lab.
32.Metalloids have properties of both _____ and nonmetals.
33.Cows eat ______.
34.We can see the _____ (moon/stars) at night.
35. A reaction that produces a color change is a sign of a ______ reaction.
36.What is the name of the famous bridge in San Francisco?
A. Brooklyn Bridge
B. Golden Gate Bridge
C. London Bridge
D. Hoover Dam 答案: B
37._____ (水果) trees produce many tasty treats.
38.My _____ (小鸟) sings sweetly in the morning.
39.The chemical symbol for cadmium is ______.
40. A _____ is an experiment that follows scientific methods.
41.The __________ is a major river that flows through India. (恒河)
42.Plants absorb carbon dioxide through their ______.
43. A __________ is known for its bright colors and beautiful patterns.
44. A ____(mangrove) forest is found in coastal areas.
45. A _______ is a reaction that involves the release of light.
46.The _______ grows best in sunny locations.
47.What is the capital of Guam?
A. Hagåtña
B. Dededo
C. Yigo
D. Mangilao答案:a
48.sustainable practices) contribute to long-term environmental health. The ____
49.选择合适的选项,补全对话。

张杰和妹妹正在背诵杜甫的诗(绝句》,但有一句不记得了 Zhang Jie:1. _I can't find it. Grandma: 2._ Zhang Jie: It's green. Grandma: Is it in the study? Zhang Jie:3.
Grandma: Is it in your bedroom? Zhang Jie. Oh,yes , it is.4. ._ Thank you, Grandna, Grandma:5.__
50. A precipitate forms when two solutions _____ together.
51.The dolphin is a very ______ (聪明的) animal.
52.What instrument is used to measure temperature?
A. Ruler
B. Scale
C. Thermometer
D. Stopwatch答案:C
53.The first president of the United States was _______ (George Washington).
54.Which of these is a primary color?
A. Green
B. Orange
C. Blue
D. Purple答案:C
55.Air pressure is the weight of air above us ______.
56.The _____ (植物健康促进) can enhance well-being.
57.They _____ (like/likes) to play outside.
58.My dad is a ______. He knows how to fix computers.
59.What is 16 ÷ 4?
A. 2
B. 4
C. 6
D. 8答案:B
60.We watch _____ on Saturday mornings. (cartoons)
61.The capital of Iceland is __________.
62. A dolphin is known for its playful ________________ (性格).
63.The _______ provides shelter for small animals.
64.The __________ (历史的意义) informs our present and future.
65.The ______ helps us learn about social media.
66.Let’s go ________ to eat ice cream.
67.The dragonfly has beautiful ______ (翅膀).
68.The cake is ______ (decorated) with frosting.
69.Mount Kilimanjaro is located in ________ (坦桑尼亚).
70.What is the largest organ in the human body?
A. Heart
B. Brain
C. Skin
D. Liver答案:C
71.She has a ___ (great) smile.
72.The __________ (二战) began in 1939.
73.He is a _____ (分析师) in a financial firm.
74. A ______ is a liquid that can dissolve a solute.
75.Which sport uses a bat and ball?
A. Soccer
B. Basketball
C. Baseball
D. Tennis答案: C
76.The Earth's crust is primarily composed of ______ and silica minerals.
77.I have a toy _______ that can change shapes and forms for fun.
78. A reaction that requires a catalyst is called a ______ reaction.
79.The __________ is a large wetland area in the United States. (弗罗里达沼泽)
80.The ________ (生态影响监测) keeps track of changes.
81.The __________ is where most of the plant’s energy production occurs.
82.What do you call the liquid part of a cell?
A. Cytoplasm
B. Nucleus
C. Membrane
D. Organelle答案:A
83.I like to _____ (draw) animals.
84.Flowers often have both male and female ______ (部分).
85.I enjoy _______ (playing) soccer with my friends.
86.I want to ___ (play/finish) my game.
87.I can ______ (应对) pressure when studying.
88. A saturated solution can reach its limit when no more solute can be ______.
89.I enjoy coloring in my ________ (涂色书) on rainy days.
90.My mom is skilled at __________ (缝纫).
91.The zebra has black and _________ (白色) stripes.
92.The dog is _______ (running) after the ball.
93.My favorite drink is _______ (牛奶).
94.What do we call a scientist who studies the properties of electricity?
A. Electrician
B. Physicist
C. Engineer
D. Chemist答案: B
95. A chemical change involves the rearrangement of ______.
96. A bison is often seen in ______ (草原).
97.What do you call a baby cow?
A. Calf
B. Foal
C. Kid
D. Lamb答案:A
98.The ________ was a significant battle in the history of Europe.
99. A rabbit's keen senses help it to detect danger before it's too ________________ (晚).
100.The _______ is very tall and green.。