Unit 5 Work it out（易错题专项练习·基础知识）英语外研版三起五年级下册（新教材）

Unit 5 Work it out

专题01 基础知识·易错题专项训练

Do you know any skills to work out a difficult problem?（P50)

work out 解决

① 核心用法：代词it/them作宾语时，必须放在work和out中间，即work it/them out，不可写成work out it；名词作宾语时，可放中间或短语末尾，如work out the problem/work the problem out。

②  词义拓展：除“解决（问题、困难）”外，还可表示“算出（数学题）”，例：work out the math question 算出这道数学题；同义短语为solve the problem。

(     )1. This problem is too hard. I can't ______.

A. work out it

B. work it out

C. works it out

D. worked it out

(     )2. He ______ the difficult problem with his deskmate's help yesterday.

A. work out

B. worked out

C. works out

D. working out

(     )3. My sister often ______ the math problems quickly by herself.

A. work out

B. worked out

C. works out

D. working out

(     )4. —______ you ______ the problem at last?

—Yes, I found a good way to solve it.

A. Did; work out

B. Do; work out

C. Did; worked out

D. Will; work out

(     )5. Don't worry. We can help you ______.

A. work out it

B. work it out

C. works it out

D. worked it out

(     )6. The little boy ______ not ______ the problem last night, so he cried sadly.

A. do; work out

B. did; work out

C. does; work out

D. will; work out

solve problems in life with better thinking skills.(P50)

solve problem 解决问题

① 核心用法：solve是及物动词，意为“解决；解答”，后面直接接宾语，无需加介词；单数形式为solve the/a problem，复数形式为solve problems（泛指解决问题，贴合课本单元主题）。

② 时态变化：solve的过去式为规则变化solved；现在分词为solving，对应课本中about solving

problems的用法（介词后接动名词）。

③ 同义替换：与work out the problem为同义短语，日常表达中可互换；区别：solve更侧重“解决系统性、有难度的问题”，work out更侧重“通过计算、推理算出/解决具体问题”。

(     )1. We should learn to ______ in our life by ourselves.

A. solve problems

B. solves problems

C. solved problems

D. solving problems

(     )2. They ______ many problems in the project last week.

A. solve

B. solved

C. solves

D. solving

(     )3. My brother often ______ the problem in a clever way.

A. solve

B. solves

C. solved

D. solving

(     )4. —What is the story about?

—It's about ______ problems in our daily life.

A. solve

B. solves

C. solved

D. solving

(     )5. We ______ not ______ this big problem without our teacher's help yesterday.

A. do; solve

B. did; solve

C. does; solve

D. will; solve

(     )6. The clever girl can ______ all the difficult problems quickly.

A. solve

B. solves

C. solved

D. solving

I'm looking for my ring.（P52）

look for 寻找

① 核心用法：look for是固定动词短语，意为“寻找”，后面直接接寻找的人或事物，例：look for my ring 找我的戒指，look for my key 找我的钥匙。

② 时态重点：课本原句为现在进行时，结构为am/is/are + looking for，表“正在寻找”，是本单元核心考点；过去式为looked for，一般现在时主语为三单时用looks for。

③ 词义辨析：look for 侧重“寻找”的动作和过程，find 侧重“找到”的结果，例：I looked for my pen everywhere, but I didn't find it. 我到处找我的钢笔，但是没找到

(     )1. —What are you doing? —I ______ my lost key. I can't find it anywhere.

A. look for

B. am looking for

C. looked for

D. looks for

(     )2. My mum ______ her ring everywhere yesterday, but she didn't find it.

A. look for

B. looked for

C. looks for

D. looking for

(     )3. The little girl often ______ her toys after school.

A. look for

B. looked for

C. looks for

D. looking for

(     )4. —______ you ______ your book this morning? —Yes, I found it in my schoolbag finally.

A. Did; look for

B. Do; look for

C. Will; look for

D. Does; look for

(     )5. Don't worry. Let's help you ______ your lost coins.

A. look for

B. looked for

C. looks for

D. looking for

(     )6. He ______ not ______ his dog now, because it came back home just now.

A. is; looking for

B. did; look for

C. do; look for

D. will; look for

Are you ready to go, Dad?（P52）

be ready to do sth. 准备好做某事

① 核心结构：固定句型，意为“准备好做某事”，to后面必须接动词原形，不能接动名词。

②同义拓展：同义短语为get ready to do sth.；对应搭配be ready for sth.（为某事做好准备），例：I am ready for the exam. 我为考试做好了准备。

(     )1. ______ you ready to go to the park with us?

A. Am

B. Is

C. Are

D. Do

(     )2. She ______ ready to have her English class now.

A. am

B. is

C. are

D. was

(     )3. They ______ ready to start the trip yesterday morning.

A. am

B. is

C. are

D. were

(     )4. —Is your brother ready ______ his homework?

—Yes, he is.

A. to do

B. do

C. doing

D. did

(     )5. We ______ not ready to leave the house at that time.

A. am

B. is

C. are

D. were

(     )6. Please get ready ______ the game. It will start soon.

The prison guard showed him a letter by Jim Burton.（P54）

show sb. sth. 给某人看某物

① 双宾语结构：show是双宾语动词，show sb. sth. = show sth. to sb.，意为“给某人看某物”，其中sb.是间接宾语，sth.是直接宾语。

② 易错重点：当直接宾语是代词it/them时，只能用show sth. to sb.结构，不能用show sb. sth.。例：正确show it to me，错误show me it。

(     )1. Can you ______ your new storybook?

A. show me

B. show I

C. shows me

D. showed me

(     )2. The guard ______ the detective the letter yesterday.

A. show

B. showed

C. shows

D. showing

(     )3. My sister often ______ her new toys to me after school.

A. show

B. showed

C. shows

D. showing

(     )4. —This is my new pen. Let me ______.

—Wow, it's so beautiful!

A. show you it

B. show it to you

C. shows it to you

D. showed you it

(     )5. He ______ not ______ me his photos yesterday, because he lost his phone.

(     )6. Please ______ your homework to the teacher after class.

A. show

B. shows

C. showed

D. showing

Let's go for a short walk.（P56）

go for a walk 去散步

① go的过去式为不规则变化went，go for a walk的过去式为went for a walk；主语为第三人称单数时，一般现在时用goes for a walk。

③ 拓展结构：同类“go for a + 名词”结构，小学常用：go for a picnic 去野餐，go for a trip 去旅行，go for a run 去跑步。

(     )1. Let's ______ after dinner. It's good for our health.

A. go for a walk

B. goes for a walk

C. went for a walk

D. going for a walk

(     )2. My grandparents ______ in the park every morning.

A. go for a walk

B. goes for a walk

C. went for a walk

D. going for a walk

(     )3. We ______ for a short walk along the lake yesterday.

A. go

B. goes

C. went

D. going

A. Do; go

B. Did; go

C. Will; go

D. Does; go

(     )5. She ______ not ______ for a walk last night, because it rained heavily.

A. do; go

B. did; go

C. does; go

D. will; go

(     )6. My father often ______ for a walk after work.

A. go

B. goes

C. went

D. going

What did the sisters use to find their way back?（P56）

Cao Chong,at six, helped to find out the weight of an elephant.（P61）

find one's way back 找到回去的路

find out 查明；弄清楚

①拓展搭配：find one's way to sp. 找到去某地的路，例：find my way to the park 找到去公园的路。

②时态变化：find的过去式为found，find out的过去式为found out。

(     )1. The two girls ______ their way back in the forest at last.

A. find

B. found

C. finds

D. finding

(     )2. Can you help me ______ the way to the library?

(     )3. Cao Chong helped to ______ the weight of the elephant in a clever way.

A. find out

B. found out

C. finds out

D. finding out

(     )4. —______ you ______ who took the book yesterday?

—Yes, we found out it was Tom.

A. Did; find out

B. Do; find out

C. Will; find out

D. Does; find out

(     )5. The little boy ______ not ______ his way back home last night.

A. do; find

B. did; find

C. does; find

D. will; find

(     )6. Let's ______ more about the clever boy from the story.

A. find out

B. found out

C. finds out

D. finding out

She always shows us the way.（P56）

show sb. the way 给某人指路

① 核心用法：固定短语，意为“给某人指路”，sb.需替换为人称代词宾格，例：show me the way 给我指路，show him the way 给他指路。

② 拓展搭配：show sb. the way to sp. 给某人指去某地的路，例：show us the way to the zoo 给我们指去动物园的路，是小学高频考点。

(     )1. The kind woman always ______ the way to people who get lost.

A. show

B. shows

C. showed

D. showing

(     )2. Can you ______ the way to the supermarket?

A. show me

B. show I

C. shows me

D. showed me

(     )3. The policeman ______ us the way to the train station yesterday.

A. show

B. shows

C. showed

D. showing

(     )4. —Could you please show ______ the way to the park?

—Sure, go straight and turn left.

A. I

B. me

C. my

D. mine

(     )5. They ______ not ______ us the way last night, because they didn't know the place either.

A. do; show

B. did; show

C. does; show

D. will; show

(     )6. Please show her the way ______ the hospital.

A. to

B. for

C. at

D. in

② 拓展搭配：同义结构help sb. with sth.，意为“在某方面帮助某人”，例：help me with my English 帮我学英语。

(     )1. My mum often helps me ______ my homework after dinner.

A. finish

B. finishes

C. finished

D. finishing

(     )2. We ______ a little girl find her way home last Sunday.

A. help

B. helped

C. helps

D. helping

(     )3. The teacher always helps us ______ English well.

A. learn

B. learns

C. learned

D. learning

(     )4. —______ your brother help you clean the room yesterday?

—Yes, he did.

A. Do

B. Does

C. Did

D. Will

(     )5. They ______ not ______ the old man carry the box yesterday.

A. do; help

B. did; help

C. does; help

D. will; help

(     )6. I can help you ______ your math after class.

A. to

B. for

C. with

D. at

① 核心发音规则：在重读音节中，字母组合or和al通常发/ɔː/长元音，本单元核心例词：short /ʃɔːt/、walk /wɔːk/、north /nɔːθ/、York /jɔːk/。

② 特殊发音：or在/w/音后常发/ɜː/音，对应本单元核心词work，例：work /wɜːk/、word /wɜːd/、world /wɜːld/。

③ 发音细节：al后接/k/音时，字母l通常不发音，仅发/ɔː/音，例：walk /wɔːk/、talk /tɔːk/，避免读出l的发音。

选出下列单词中划线部分发音不同的一项。

(     )1. A. short

B. walk

C. work

D. north

(     )2. A. walk

B. talk

C. tall

D. word

(     )3. A. York

B. short

C. work

D. sort

(     )4. A. north

B. word

C. world

D. work

(     )5. A. walk

B. warm

C. short

D. morning

一、用括号内单词的正确形式填空

1.The old building ______（date back）to the Qing Dynasty and still stands today.

2.The old movie ______（bring）me back to my happy childhood yesterday afternoon.

3.The handmade card ______（be）in the shape of a heart. It's for my mum.

4.Lots of players ______（take part in）the sports meeting last week.

5.We ______（take care of）the sick cat when we stayed at the countryside.

6.All the villagers ______（stay）safe from the flood because of the early warning.

7.Workers ______（pull down）the old factory to build a community park next month.

8.He ______（put）his warm coat into the box and left the room.

9.She ______（try）on many dresses before she picked a pink one yesterday.

10.We should ______（learn from）the heroes and try to be a better person.

二、单项选择题

(     )1. This ancient folk custom ______ to the Southern Song Dynasty and is popular till now.

A. date back

B. dates back

C. dated back

D. dating back

(     )2. The old photos ______ my grandma back to her young days.

A. bring

B. brought

C. brings

D. will bring

(     )3. The kites we made last week ______ in the shape of butterflies.

A. is

B. was

C. are

D. were

(     )4. My best friend ______ in the English speech contest last weekend and won first prize.

A. take part

B. took part

C. takes part

D. will take part

(     )5. He ______ his little brother carefully when their parents were on business.

A. take care of

B. took care of

C. takes care of

D. is taking care of

(     )6. We should ______ safe from the heavy rain by staying indoors.

A. stay

B. stayed

C. stays

D. staying

(     )7. They ______ down the old house last month and built a new garden.

A. pull

B. pulled

C. pulls

D. will pull

A. put; put

B. put; puts

C. puts; put

D. puts; puts

(     )9. My aunt always ______ on new shoes before she pays for them.

A. try

B. tried

C. tries

D. will try

(     )10. We should ______ the rare animals from being hurt.

A. protect

B. protected

C. protects

D. protecting

(     )11. Which of the following words has the same sound as "toy"?

A. bed

B. boy

C. city

D. bye