小学下册第15次英语第四单元真题(含答案)

小学下册英语第四单元真题(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._____ (蜻蜓) often hover around ponds with plants.
2.My sister is a great __________. (诗人)
3.The __________ (季节) changes affect plant life.
4.The chemical formula for -butene is ______.
5.He is wearing a ___. (hat)
6.I think animals are amazing! My favorite animal is __________ because it is
__________. I would love to have one as a pet. I enjoy visiting the __________ to see different kinds of animals.
7.The __________ (历史的探索) reveals insights.
8.The ______ (海星) has a unique shape with arms.
9.My ________ (玩具) is a source of endless fun.
10.The Moon's surface has many ______ from impacts.
11. A _____ is a large body of salt water, like the Pacific.
12.The _____ (热带植物) thrive in warm climates.
13.The largest mammal in the ocean is the __________ whale.
14. A ______ has a long tail and is very agile.
15.We are _____ (going/come) to the party.
16.I like to go to the ______ (电影院) to watch new movies. It’s always an exciting experience.
17.I have a _____ (pen).
18.The chemical symbol for neon is _______.
19.My _____ (宠物猫) loves to chase strings.
20.What do we call the process of converting solid to liquid?
A. Freezing
B. Melting
C. Boiling
D. Evaporating答案: B
21.Iron reacts with oxygen to form _______.
22.What do we call the fluffy white substance that falls from the sky in winter?
A. Rain
B. Hail
C. Snow
D. Sleet答案: C
23.The _____ (stevia) plant is a natural sweetener.
24.The main function of carbohydrates is to provide _____.
25.Read and choose.(看图标号。

)
I. mouth 2. eye 3. hand 4. finger 5. foot 6. leg 7.arm 8.Body
26.The ______ (小鸟) collects twigs for its nest.
27.The _______ (金鱼) can come in various colors.
28.What is the name of the longest river in the world?
A. Nile
B. Amazon
C. Mississippi
D. Yangtze答案:B.Amazon
29.What do we call the process of creating energy from the sun?
A. Solar power
B. Photovoltaics
C. Solar energy
D. All of the above答案:
D. All of the above
30.The weather is ________ (宜人).
31._____ (野生) plants sometimes grow in unexpected places.
32.The cat is ___ (chasing/hiding) a mouse.
33.The main component of soda is _____.
34.I see a _____ (狮子) at the zoo.
35.The chemical symbol for aluminum is ______.
36.The __________ (古代中国的丝绸之路) connected East and West.
37.I like to draw pictures of ________.
38.The blue color of copper sulfate is an example of a _______. (化合物)
39. A _____ (植物探讨) can lead to innovative gardening methods.
40. A __________ is a natural feature formed by erosion.
41.The chemical formula for potassium bromide is ______.
42. A cave is formed by the erosion of ______ rock over time.
43. A __________ can often be seen perched on a branch.
44.I like to create stories with my toy ____. (玩具名称)
45.The sun is ______ brightly today. (shining)
46. A goldfish can be trained to perform simple ______ (动作).
47.We are going to the ______ (mall) tomorrow.
48.The chemical formula for silicon dioxide is _______.
49.Listen and number.听录音排序。

50. A hamster gathers food in its ______ (窝).
51.My friend is a _____ (心理学家) who helps people cope.
52.The ______ (花园) is full of ______ (昆虫) in summer.
53.选择与句子相对应的图片。

54.My uncle is a skilled __________ (工匠).
55.The elephant is a large ______ (animal).
56. A chemical reaction can produce _____ as a byproduct.
57.The flower has bright ______.
58.The _______ (Transcontinental Railroad) connected the east and west coasts of the US.
59.The ________ (生态旅游) promotes conservation.
60. A chemical reaction can release heat and light in an ______ reaction.
61.The process of breaking down substances into simpler ones is called ______.
62.The _______ will bloom when the weather is warm.
63. A _____ is a place known for its beauty and tranquility.
64.What do you call a series of pictures that tells a story?
A. Novel
B. Comic
C. Film
D. Play答案: B
65. A __________ (化学网络) connects researchers and promotes innovation.
66.How many letters are there in the English alphabet?
A. 24
B. 25
C. 26
D. 27答案:C
67.What do you call the first meal of the day?
A. Lunch
B. Breakfast
C. Dinner
D. Snack答案:B
68.The capital of Switzerland is __________.
69.My ______ works in the film industry.
70.Which is the tallest mountain in the world?
A. K2
B. Kilimanjaro
C. Everest
D. Fuji答案:C
71.We _______ (喜欢) to watch movies together.
72.An atom consists of protons, neutrons, and ______.
73.The __________ is the central part of an atom containing protons and neutrons.
74.The _______ of an element describes its ability to react. (反应性)
75.What is the primary color that mixes with yellow to create green?
A. Blue
B. Red
C. Purple
D. Orange答案:A
76.The gecko can climb walls due to its _________ (脚).
77.I like to eat ________ for breakfast.
78.is important for ______ (光合作用). Sunlight
79.My brother is a ______. He dreams of playing in the NBA.
80. A precipitate forms during a ______.
81.The ________ (train) goes to the city.
82.What is the sound of a clock?
A. Tick-tock
B. Ring
C. Beep
D. Buzz答案:A
83. A __________ is a mixture where one substance is uniformly distributed in another.
84.The ______ (种植者) enjoys gardening.
85.The process of polymerization creates ______.
86.The __________ (历史的趋势) can inform policymaking.
87.My grandma loves to knit ____.
88. A __________ has a distinctive call that sounds like a laugh.
89.Did you ever see a _______ (小丑鱼) in an aquarium?
90. A _______ is a reaction that occurs in the soil.
91.The ______ (阳光) is needed for photosynthesis.
92.The __________ (南北战争) ended slavery in the United States.
93.The ________ can be very shiny.
94.The giraffe uses its long neck to reach ________________ (树叶).
95.The chemical formula for sodium acetate is ______.
96. A light year is a unit of ______ used in astronomy.
97.The __________ is a large area of untouched nature.
98.The kids are ___ outside. (playing)
99.Acidic solutions have a pH less than _______.
100.I love to play ______ (拼图) with my family during rainy days.。