Unit 3 It's a colourful world!语法精练（专项训练）-2025-2026学年外研版（三起）（2024）英语三年级上册

外研版英语三年级上册 Unit 3 It's a colourful world! 语法精练

语法点拨

1. 颜色类词汇：常见颜色词（red 红色，yellow 黄色，blue 蓝色，green 绿色，black 黑色，white 白色，orange 橙色，purple 紫色），需掌握 “主语 + be + 颜色词” 结构描述事物颜色（如 The apple is red.）。
2. be 动词（is/are）用法：单数事物用 “is”（This flower is pink.），复数事物用 “are”（These balloons are blue.），不可数名词（如 water, juice）也用 “is”（The water is green.）。
3. 指示代词（This/That/These/Those）：“This/That” 指代单数事物（This is a pen. That is a book.），“These/Those” 指代复数事物（These are pencils. Those are rulers.），常搭配 “is/are” 描述颜色或属性。

一、颜色词匹配（10 分，每小题 2 分）

将下列事物与对应的颜色词连线，并用 “主语 + be + 颜色词” 造句（任选 3 个）。

1. 天空（sky）          A. red
2. 香蕉（banana）       B. blue
3. 苹果（apple）        C. green
4. 树叶（leaf）         D. yellow
5. 橙子（orange）       E. orange

造句：

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二、用 be 动词（is/are）填空（15 分，每小题 1.5 分）

根据括号内事物单复数，用 “is” 或 “are” 补全句子，描述事物颜色。

1. The sun ________ (be) yellow. It's big and bright.
2. These flowers ________ (be) pink. They look very beautiful.
3. That pencil ________ (be) green. It's my new pencil.
4. The trees ________ (be) green in spring. They have new leaves.
5. This balloon ________ (be) red. I like it very much.
6. Those birds ________ (be) black. They are flying in the sky.
7. The orange ________ (be) orange. It's sweet and juicy.
8. These books ________ (be) blue. They are my storybooks.
9. That dog ________ (be) white. It has big eyes.
10.        The grapes ________ (be) purple. They are on the table.

三、指示代词（This/That/These/Those）填空（15 分，每小题 1.5 分）

用 “This/That/These/Those” 填空，补全句子并搭配正确的 be 动词。

1. ________ (This/That/These/Those) is a red apple. It's on the desk.
2. ________ (This/That/These/Those) are yellow bananas. They are in the bag.
3. ________ (This/That/These/Those) is a blue sky. Look up!
4. ________ (This/That/These/Those) are green leaves. They are on the tree.
5. ________ (This/That/These/Those) is a black cat. It's under the chair.

6. ________ (This/That/These/Those) are white clouds. They are in the sky.
7. ________ (This/That/These/Those) is an orange orange. It's on the plate.
8. ________ (This/That/These/Those) are purple grapes. They are sweet.
9. ________ (This/That/These/Those) is a green frog. It's in the pond.
10.        ________ (This/That/These/Those) are red flowers. They are in the garden.

四、单选（20 分，每小题 2 分）

(  ) 1. The grass ________ green. It's very soft.

A. is    B. are    C. am    D. be

(  ) 2. ________ is a blue balloon. I like it.

A. These    B. Those    C. This    D. They

(  ) 3. Those ________ yellow ducks. They are in the river.

A. is    B. are    C. am    D. be

(  ) 4. —What colour ________ the sun?  —It's yellow.

A. is    B. are    C. am    D. be

(  ) 5. ________ are red apples. They are on the table.

A. This    B. That    C. These    D. It

(  ) 6. The pen ________ black. It's my brother's pen.

A. is    B. are    C. am    D. be

(  ) 7. —What colour ________ those flowers? —They are pink.

A. is    B. are    C. am    D. be

(  ) 8. ________ is a green leaf. It's from the big tree.