小学下册A卷英语第四单元期中试卷(有答案)

小学下册英语第四单元期中试卷(有答案)
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.The _______ of a pendulum can be illustrated using a clock mechanism.
2.My favorite animal is a ______ (狮子).
3.The _____ (sunflower) heads follow the sun.
4.My pet rabbit loves to nibble on _______ (青草).
5.The capital of Uzbekistan is ________ (塔什干).
6.Many plants have ______ (保护机制) against herbivores.
7.What is the freezing point of water?
A. 0 degrees Celsius
B. 32 degrees Celsius
C. 100 degrees Celsius
D. 50 degrees Celsius答案: A
8.我的朋友喜欢 _______ (活动). 她觉得这很 _______ (形容词)
9.What is the opposite of "heavy"?
A. Light
B. Strong
C. Weak
D. Fast答案: A
10.The pH level of pure water is ______.
11.The _____ (遥控船) sails on the water.
12.I enjoy playing ________ (动词) games with my toys. It helps me understand teamwork.
13.I enjoy playing sports like ______ (足球) and ______ (篮球) with my friends.
14.What do you call a baby deer?
A. Calf
B. Fawn
C. Kid
D. Foal答案: B
15.My best friend and I created a ________ (俱乐部) for kids who love to read and share ________ (书籍).
16.In school, we have a library where we can borrow ______ (书籍). I love discovering new stories.
17.What is the largest organ in the human body?
A. Heart
B. Liver
C. Skin
D. Brain答案:C
18.I think it’s essential to st ay _______ (形容词) in tough times. It helps us become stronger.
19. A rabbit's fur keeps it ______ in different weather.
20.The ______ (植物学家) studies plants.
21.The chemical formula for potassium sulfate is __________.
22.The bison roams the _______ fields.
23.I enjoy _______ (看电影) on weekends.
24.During photosynthesis, plants take in ______.
25.听录音，标序号。

26.What is the boiling point of water?
A. 50 degrees Celsius
B. 75 degrees Celsius
C. 100 degrees Celsius
D. 150 degrees Celsius答案: C. 100 degrees Celsius
27.What is the name of the giant panda’s main food?
A. Bamboo
B. Grass
C. Leaves
D. Fruits答案:A
28.Certain plants can ______ (帮助) mitigate climate change.
29.The Great Red Spot is found on ______.
30.The _______ (大象) has big ears.
31.The capital of Nepal is _______.
32.The iguana is a popular ________________ (宠物).
33. A __________ is a reaction that involves a change in temperature.
34.The ____ is known for its beauty and grace.
35. A newt is similar to a ______ (青蛙).
36.I enjoy cooking ______ for my family.
37.The fish are ______ (swimming) in the river.
38.The cat is ___ (chasing/hiding) from the dog.
39.The ________ (生态伦理) guides conservation efforts.
40.My toy ________ is very colorful.
41. A pulley can help lift heavy ______.
42.silt) enriches soil in river valleys. The ____
43.The ______ communicates through sounds.
44.__________ are used in the cosmetic industry for moisturizing.
45.The ice cream is ______ (cold) and tasty.
46.My __________ (玩具名) is a great __________ (名词) for learning.
47.The fish has colorful _________. (鳞片)
48.The Earth's crust is primarily composed of igneous and ______ rocks.
49.选择相应的图片。

50.________ (生物工程) advances agriculture.
51.What is the opposite of "new"?
A. Fresh
B. Old
C. Young
D. Modern答案: B
52. A _____ (植物文化遗产) enriches our connection to nature.
53.My cousin has a beautiful ____ (parrot) that talks.
54.The ______ (老虎) is known for its beautiful fur patterns.
55. A molecule is made up of two or more ______ bonded together.
56.What do you call a large body of water?
A. River
B. Lake
C. Ocean
D. Pool答案: C
57. Barrier Reef is located in _____ (32). The Grea
58.What do you call the place where people go to watch movies?
A. Theater
B. Cinema
C. Studio
D. Gallery答案: B
59.My mom loves to _______ (动词) to relax. 她觉得这个很 _______ (形容词).
60.My aunt has a cute __________. (小猫)
61. A chemical reaction that occurs between an acid and a base is called a ______ reaction.
62.I have a toy ________ that can glow in the dark.
63.__________ are substances that speed up chemical reactions.
64. A seismic wave is a wave that travels through ______.
65.I like ________ (吃) ice cream.
66.My favorite ________ is pink.
67.I like to eat _____ (apples).
68. A ______ (花坛) can be designed with different colored flowers.
69.Acids taste ______.
70.What do we call the study of animals?
A. Botany
B. Zoology
C. Ecology
D. Anthropology答案:B
71.The ________ (资源管理) is essential for sustainability.
72.The girl loves to ________.
73.The _____ (向日葵) turns to face the sun.
74.What is the term for the change of state from liquid to gas?
A. Freezing
B. Melting
C. Condensation
D. Evaporation答案: D
75.She is _____ (practicing) her dance moves.
76.Atoms consist of protons, neutrons, and ________.
77.water quality standards) ensure safe drinking water. The ____
78.My hamster likes to _______ (跑轮) in its cage.
79.What is the color of an apple?
A. Yellow
B. Green
C. Red
D. Blue答案:C Red
80. A puppy loves to _______ (玩耍) all day.
81.I can ___ (ride) a bicycle.
82.The _______ (Treaty of Versailles) ended World War I in 1919.
83.My sister enjoys __________ (参加) clubs at school.
84. A ____ lives in a den and is very cunning.
85.What do we call the process of becoming a butterfly?
A. Metamorphosis
B. Transformation
C. Evolution
D. Growth答案:A
86.What do you call the process of planting seeds?
A. Growing
B. Harvesting
C. Sowing
D. Watering答案:C
87.What do we use to write on paper?
A. Paint
B. Chalk
C. Pencil
D. Clay答案:C
88.The __________ (历史的反响) shapes public discourse.
89.I can ______ (jump) high in gym class.
90.The Great Barrier Reef is found off the coast of __________.
91.What is the name of the longest river in Africa?
A. Nile
B. Congo
C. Zambezi
D. Niger答案:A
92.I want to _______ (探索) new places.
93.My friend enjoys __________ (参与) community service projects.
94.The chemical symbol for chromium is ______.
95.My sister loves to ________.
96.My mom loves __________ (参与学校活动).
97.My sister's favorite animal is a ______ (海豚).
98. A chemist studies the properties and ________ of matter.
99.The squirrel is an expert at climbing _______ (树木). 100.The __________ is essential for maintaining biodiversity.。