小学上册第十三次英语第3单元真题试卷

小学上册英语第3单元真题试卷
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.An __________ is a substance that donates protons in a reaction.
2.What do we call the solid form of water?
A. Ice
B. Steam
C. Snow
D. Liquid
3.The ________ blooms in spring.
4.My dog enjoys _______ (散步) with me.
5.What is the name of the festival that celebrates the harvest in autumn?
A. Christmas
B. Thanksgiving
C. Easter
D. HalloweenB
6.The __________ (历史的社会影响力) shape perspectives.
7. A _____ (自然教育) can foster respect for the environment.
8. A __________ is formed through the action of water on rock over time.
9.The _____ (树皮) protects the tree from harm.
10. A _______ is a chemical reaction that produces heat.
11.My ________ (玩具名称) helps me with my math skills.
12. A ____ is a small creature that enjoys exploring its environment.
13.What do we call the outer layer of the Earth?
A. Core
B. Mantle
C. Crust
D. AtmosphereC
14.My ___ (小狗) likes to dig holes.
15.What is the opposite of 'big'?
A. Large
B. Small
C. Huge
D. Tall
16.What is the main source of energy for the Earth?
A. Moon
B. Sun
C. Stars
D. Wind
17.What do you call a young female shark?
A. Pup
B. Kit
C. Calf
D. Chick
18. A ____ is a small mammal that digs and burrows.
19.The dog loves to play outside in the _________. (阳光)
20.What do you call the sound a cow makes?
A. Bark
B. Meow
C. Moo
D. Roar
21.The chemical formula for ammonium sulfate is __________.
22.The _______ (老虎) is striped.
23.________ (生态补偿) supports conservation efforts.
24. A reduction reaction involves the gain of ______.
25.The chemical formula for aluminum sulfate is _______.
26.We enjoy _____ (baking) together.
27.My brother is a _____ (科学家) who studies animals.
28.The city of Singapore is the capital of _______.
29.Which food is made from milk?
A. Bread
B. Cheese
C. Rice
D. Pasta
30.The capital of Burundi is ________ (吉特根).
31.What do we call water that falls from the sky?
A. Snow
B. Rain
C. Hail
D. Fog
32.What do we call the smallest unit of a substance that retains its properties?
A. Molecule
B. Atom
C. Compound
D. ElementB Atom
33. A fizzy drink releases _______ when opened.
34.Which animal can fly?
A. Dog
B. Cat
C. Bird
D. FishC Bird
35.The ____ has a soft, fluffy coat and loves to play.
36.The chemical symbol for zinc is _______.
37.I like to ___ with my friends. (hang out)
38.The country known for its volcanoes is ________ (冰岛).
39.The __________ (历史的时间线) provides context.
40.Nebulae can be the birthplace of new _______.
41.The ________ (museum) has interesting exhibits.
42.I enjoy watching _______ (蝴蝶) in the garden.
43.My sister loves ________ (画画).
44.My sister is a ______. She loves to paint.
45.How many teeth does an adult human usually have?
A. 20
B. 24
C. 28
D. 32D
46.My cousin loves to __________ (游泳) in the summer.
47.I have fun playing board games with my ____.
48. A ______ is a type of mixture that can settle over time.
49.What is the name of the famous statue in Rio de Janeiro?
A. Statue of Liberty
B. Christ the Redeemer
C. David
D. Venus de MiloB
50.Flowers often attract ______ (昆虫) for pollination.
51.I enjoy playing with my toy ________ (玩具名称) during weekends.
52. A ________ can change its colors.
53.My sister loves __________ (参与学校活动).
54.What is the opposite of 'big'?
A. Small
B. Tall
C. Wide
D. LongA
55.I love to watch _______ (昆虫) crawl.
56.The bird is singing sweet ______.
57.My dog loves to go for a ______ (散步).
58.The flamingo gets its pink color from its _________ (饮食).
59.They play _____ (hide-and-seek).
60.The bird builds a _____ nest.
61.Chemical properties describe how a substance reacts with ______.
62.The symbol for chromium is _____.
63.The element with the symbol O is __________.
64.I enjoy ________ (参加) sports.
65.I have a _____ (篮球) that I use to practice shooting hoops. 我有一个用来练习投篮的篮球。

66.My family loves to __________ on weekends. (聚会)
67.__________ (分子识别) is important for drug design and efficacy.
68.The teacher is very ________.
69. A _____ is often kept as a pet.
70.In a chemical reaction, substances are __________ (反应) to form new ones.
71.What do we call the study of living things?
A. Physics
B. Chemistry
C. Biology
D. GeographyC
72.What is the main function of the heart?
A. To think
B. To pump blood
C. To digest food
D. To breathe
73.What do we call a baby horse?
A. Calf
B. Foal
C. Lamb
D. Kid
74.I like to watch the _____ (蚂蚁) working together to build their home. 我喜欢看蚂蚁一起工作，建造它们的家。

75.I like to eat ___ (fruit).
76.My grandma loves to play ____ (cards) with friends.
77.The __________ was a significant period of change in American history. (民权运动)
78.What do we call the study of the physical features of the Earth?
A. Geography
B. Geology
C. Cartography
D. MeteorologyA
79.My cousin loves to ride __________. (马)
80.The first successful heart surgery was performed in ______ (20世纪).
81.The bear climbs trees in search of _____ honey.
82.The __________ is a part of the plant that anchors it to the ground.
83.What do you call a person who helps others in need without expecting anything in return?
A. Philanthropist
B. Benefactor
C. Volunteer
D. DonorC
84.The ________ was a key event in the history of the United States.
85.The chemical formula for lactic acid is _______.
86. A __________ (气泡) forms when gas is released during a reaction.
87.The _____ (whale) swims in the ocean.
88.My ________ (姐姐) teaches me how to swim.
89.What do you call a baby bison?
A. Calf
B. Pup
C. Kit
D. FawnA
90.hurricane) is a powerful storm that forms over the ocean. The ____
91.What do we call the process of plants making their food?
A. Photosynthesis
B. Respiration
C. Digestion
D. EvaporationA
92.n Tea Party was a protest against __________ (税收). The Bost
93.What do you call a baby cat?
A. Pup
B. Kitten
C. Cub
D. CalfB Kitten
94.My ________ (玩具名称) is a reflection of my personality.
95.The _____ (水分) is essential for plant health.
96.What is the name of the famous comic book character created by Stan Lee?
A. Superman
B. Iron Man
C. Batman
D. Wonder WomanB
97.What is the name of the famous ancient structure in Greece?
A. Colosseum
B. Parthenon
C. Great Wall
D. PyramidsB
98.The ______ (小鱼) swims happily among the colorful coral in the ______ (海洋).
99.My dad loves to cook __________. (晚餐)
100.What is the capital of the United States?
A. New York
B. Washington,
C. Los Angeles
D. ChicagoB。