小学下册第八次英语第三单元全练全测(含答案)

小学下册英语第三单元全练全测(含答案)
英语试题
一、综合题(本题有50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 term for a sudden increase in a star's brightness?
A. Nova
B. Supernova
C. Pulsar
D. Variable Star
2 What is the primary purpose of a compass?
A. To tell time
B. To find direction
C. To measure distance
D. To calculate weight
答案：B
3 What is the opposite of "strong"?
A. Weak
B. Powerful
C. Mighty
D. Robust
4 Which fruit is red and often mistaken for a vegetable?
A. Tomato
B. Pepper
D. Carrot
答案:A
5 This girl, ______ (这个女孩), is a fantastic swimmer.
6 My teacher has a lot of __________ (知识) to share.
7 _____ (ecosystem) balances plants and animals.
8 We should _______ (help/ignore) each other.
9 The symbol for osmium is _____.
10 The __________ (国际关系) influence trade and travel.
11 The boiling point of water is higher at ______ altitude.
12 What is the name of the famous palace in Paris?
A. Buckingham Palace
B. Versailles
C. Louvre
D. Neuschwanstein
答案:B
13 We visit the ______ (科学博物馆) to learn about technology.
14 The country famous for its long coastline is ________ (澳大利亚).
15 The rabbit is very _______ (活泼).
16 The ______ (小鼠) scurries quickly across the floor.
17 He _____ (is/are) my best friend.
18 The _______ of sound can be heard even in different environments.
19 What do we call the season when it snows?
A. Winter
C. Summer
D. Fall
答案:A
20 A solution that contains dissolved ions is called a _______.
21 A solution that contains a high concentration of solute is called a _____ solution.
22 The ______ (植物生长) cycle is fascinating.
23 What is the past tense of "go"?
A. Goes
B. Gone
C. Went
D. Going
24 The _____ (cake/pie) is delicious.
25 What is the name of the famous Italian explorer who discovered America?
A. Christopher Columbus
B. Marco Polo
C. Ferdinand Magellan
D. Vasco da Gama
答案: A
26 The _______ (小蓝鸟) builds its nest high up in the trees.
27 My friend has a pet ______ (狗) that is very loyal.
28 My sister enjoys __________ (学习) about history.
29 I saw a ________ flying above my house.
30 I want to learn how to ______ (ski).
31 I like to go ________ (滑雪) in the winter.
32 A __________ is a combination of two or more elements that are chemically bonded together.
33 Dolphins communicate using ______.
34 A saturated solution contains the maximum amount of ________ that can dissolve.
35 The capital of Guyana is __________.
36 What do you call a baby cat?
A. Puppy
B. Kitten
C. Cub
D. Calf
37 What is the capital of Comoros?
A. Moroni
B. Moutsamoudou
C. Domoni
D. Mitsamiouli
答案:A
38 The teacher is very ________.
39 The bicycle is ___ (new/old).
40 (97) is a famous festival in Brazil. The ____
41 The capital of the Philippines is __________.
42 The antelope runs very ________________ (快).
43 A __________ is a geological feature that influences land use decisions.
44 At night, I look at the ________ in the sky.
45 Wall of China was built to protect against _______ (invaders). The Grea
46 A ____(community newsletter) informs residents of events and resources.
47 What do you call a baby cat?
A. Puppy
B. Kitten
C. Cub
D. Foal
48 The __________ (历史的参与性) enhances engagement.
49 What do you call the first letter of the alphabet?
A. A
B. B
C. C
D. D
答案：A
50 What is the name of the holiday celebrated on July 4th in the USA?
A. Memorial Day
B. Independence Day
C. Labor Day
D. Thanksgiving
51 The chemical formula for calcium bicarbonate is ______.
52 What is the name of the famous American actress known for "The Princess Diaries"?
A. Anne Hathaway
B. Mandy Moore
C. Lindsay Lohan
D. Kristen Stewart
答案：A
53 What do we call the science of rocks?
A. Biology
B. Geology
C. Chemistry
D. Physics
答案:B
54 , the wind can be really __________. (强劲的) Sparrows
55 I love to explore nature. One of my favorite places to hike is __________.
56 Parrots can ______ human speech.
57 What is the main ingredient in bread?
A. Rice
B. Flour
C. Sugar
D. Salt
58 My friend is a great __________ (摄影师) with a creative eye.
59 A __________ is a substance that can be broken down into simpler substances.
60 The __________ was a significant event in the history of civil rights in America. (华盛顿大游行)
61 Can you see the _____ (茎) of the flower?
62 What do you call a large desert animal known for its hump?
A. Camel
B. Horse
C. Donkey
D. Zebra
答案:A
63 In a chemical reaction, the substances that are produced are called _____.
64 My family is very . (我的家人很。

)
65 The chemical symbol for cobalt is ______.
66 Rust is an example of a _____ (chemical change).
67 Inertia is the tendency of an object to stay at ______ (rest).
68 A _____ (小狼) howls at the moon.
69 We celebrate __________ Day with family. (节日)
70 What do we use to listen to music?
A. Radio
B. Television
C. Computer
D. Phone
答案:A
71 What is 100 divided by 4?
A. 20
B. 25
C. 30
D. 35
答案:A. 25
72 The garden is filled with colorful _______ that bloom beautifully every season.
73 A __________ is a geological feature that can impact human settlements.
74 She is _______ (looking) for her shoes.
75 The __________ will help us know if we need to prepare for rain. (天气预报)
76 She has a ________ (wonderful) idea.
77 A __________ is formed through the accumulation of sediment in a river.
78 The __________ is a large geological formation. (岩石带)
79 He is a _____ (艺术家) who specializes in sculptures.
80 I have a _______ (小手指) that loves to play.
81 Which fruit is yellow?
A. Apple
B. Banana
C. Cherry
D. Grape
答案: B
82 The ________ was a significant period in the history of political thought.
83 A suspension is a mixture where particles are ______ in a liquid.
84 The puppy is _________ and fluffy. (可爱)
85 I _____ (found/find) a penny on the ground.
86 A polymer is a large molecule made up of many _____.
87 I enjoy making ________ for my family.
88 A ________ (火山口) is the opening of a volcano.
89 I like to collect __________ (玩具名) from different __________ (国家).
90 What is the main ingredient in jam?
A. Sugar
B. Fruit
C. Water
D. Flour
答案:B
91 A _____ (马) can carry heavy loads.
92 Every evening, I spend time with my ______ (家人) and talk about our day. It strengthens our bond.
93 The Earth's surface is shaped by various geological ______.
94 Which animal is known as man's best friend?
A. Cat
B. Dog
C. Bird
D. Fish
答案:B
95 A _______ can be very useful in cooking.
96 My toy ____ can swim in the pool! (玩具名称)
97 I love to watch ________ (电视剧).
98 Stars are categorized into different ______.
99 My cousin is learning to _______ (动词). 她对这个很 _______ (形容词). 100 The _____ (生态旅游) promotes awareness of plant diversity.。