Unit 6 Then and now （易错题专项训练·语法提升）英语外研版三起五年级下册（新教材）

Unit 6 Then and now

专题02 语法提升·易错题专项训练

询问与描述问题的句型

通过系动词的时态变化来对比过去与现在的状态，是描述事物变化最基础、最常用的句型。系动词包括be动词（am/is/are/was/were）和感官系动词（look, sound, taste等）。

1.The streets were full of bikes 30 years ago. Now the streets are still full of bikes.

2.It looks the same in Grandpa's old photos.

3.The journey to school was hard and dangerous in the past.

核心结构：

过去状态：主语 + was/were + 形容词/介词短语

现在状态：主语 + is/are/looks/sounds + 形容词/介词短语

1.was用于单数主语和不可数名词，were用于复数主语；

2.感官系动词的一般现在时第三人称单数要加-s（如look→looks）；

3.对比过去与现在时，两个句子的系动词时态必须对应，不能混淆。

一、单项选择题

(     )1. Our school ______ very small 20 years ago, but now it ______ one of the best schools in the city.

A. is; was   

B. was; is

C. were; are

D. are; were

(     )2. The river ______ very dirty 10 years ago, but now it ______ clear again after the government's effort.

A. was; is

B. is; was

C. were; are

D. are; were

(     )3. —How ______ the party last night? —It ______ very wonderful. We all had a good time.

—Yes, I can’t find my schoolbag.

A. is; is

B. was; was

C. are; were

D. were; were

(     )4. These old stamps ______ very old, but they ______ very valuable now.

—He _______ a big problem with his project.

A. is; are

B. are; are

C. was; were

D. were; are

(     )5. This kind of radio ______ very popular in the 1990s, but now almost no one uses it.

—I can’t get on well with my deskmate.

A. is

B. was

C. are

D. were

二、语法填空题

1.The library ______ (be) closed yesterday, but it ______ (be) open today.

2.My grandparents ______ (be) farmers 30 years ago, and they ______ (be) still used to living in the countryside now.

3.The cake ______ (taste) delicious yesterday, and it ______ (taste) still good today.

4.There ______ (be) no hospitals in the town before, but now there ______ (be) two big hospitals.

5.The music ______ (sound) beautiful when we listened to it last night.

请求帮助的句型

实义动词的一般过去时用于描述过去发生的动作或经历，分为规则变化和不规则变化两类，是表达过去事件的核心语法点。

1.We left Beijing in the morning and got to Xi'an in time for lunch.

2.He gave up a good life in the city and worked hard to plant trees.

3.The Daliang Mountains became a green world after 22 years.

核心变化：

规则变化：直接加-ed（work→worked, travel→travelled）；以e结尾加-d（live→lived）；重读闭音节双写尾字母加-ed（stop→stopped）

不规则变化：需重点记忆（leave→left, get→got, give→gave, make→made, become→became）

并列动作：and连接的两个过去动作，时态保持一致

1.不规则动词过去式无固定规律，避免写成规则形式（如把left写成leaved）；

2.一般过去时的疑问句和否定句中，助动词did后必须接动词原形；

3.以y结尾的动词，变y为i再加-ed（如study→studied）。

一、单项选择题

(     )1. The old scientist ______ his research at the age of 60 and ______ it until he passed away.

A. start; didn't stop

B. started; didn't stop

C. started; don't stop

D. start; don't stop

(     )2. We ______ to the top of Mount Emei last summer and ______ the amazing sea of clouds there.

A. hike; see

B. hiked; saw

C. hikes; sees

D. hiking; seeing

(     )3. The young man ______ all his savings to help the poor children in the mountain area last year.

—Yes, I can help you check it after class.

A. give 

B. gives

C. gave

D. giving

(     )4. —Did you ______ the story that your grandma told you about her childhood? —Yes, it was very touching.

A. hear

B. heard

C. hearing

D. hears

(     )5. The villagers ______ many new houses in the past 5 years and ______ their living conditions greatly.

—Yes, he can’t work out this math problem.

A. build; improve

B. built; improved

C. builds; improves

D. building; improving

二、语法填空题

1.She ______ (take) out her old photo album and ______ (show) me pictures of her childhood yesterday.

2.We ______ (plant) 50 trees in the park last Tree Planting Day and ______ (water) them carefully.

3.The little girl ______ (drop) her ice cream on the ground and ______ (cry) loudly.

4.My uncle ______ (leave) his job in the city last year and ______ (move) back to his hometown to farm.

5.Our hometown ______ (change) a lot since the high-speed train station was built.

there be句型的过去时与现在时对比

情景交际（描述过去与现在的变化）

本单元情景交际围绕“过去与现在的变化”展开，涵盖询问变化、描述变化和表达对变化的感受三大核心功能，是日常交流中对比事物发展的常用句型。

—Which changes surprised you most? —The high-speed trains. They make travel faster.

In the past, there weren't many buildings. Today, there are lots of buildings and roads.

The journey to school was hard and dangerous, but now it is safe and easy.

核心结构：

询问变化：Which changes surprised you most? / How do the changes change your life?

描述变化：In the past, + 一般过去时句子. Now/Today, + 一般现在时句子.

转折对比：用but连接过去与现在的状态，突出差异

1.时态必须对应：描述过去的动作用一般过去时，描述现在的动作用一般现在时；

2.回答Which changes...?时需具体指出变化的事物，不能笼统回答；

3.表达感受常用“make + 宾语 + 形容词”结构，如make life easier。

一、单项选择题

(     )1. —______ —The online shopping. It makes buying things much more convenient.

A. How do you usually go shopping now?

B. Which changes in your life surprised you most?

C. When did online shopping become popular?

D. Why do you like online shopping?

(     )2. In the past, people cooked with coal, ______ now most families use natural gas.

A. in; in

B. on; in

C. in; on

D. on; on

(     )2. We travelled ______ Sichuan last winter and stopped ______ a century-old teahouse in Leshan.

A. around; at

B. to; in

C. around; in

D. to; at

(     )3. The volunteer teacher worked in the mountain school ______ 15 years and never gave up.

A. in

B. for

C. since

D. at

(     )4. ______ the way back home, we found a lost cat and sent it to the animal shelter.

A. In

B. At

C. On

D. By

(     )5. Now people can cross the Yangtze River ______ the new bridge, which saves a lot of time.

A. on

B. by

C. in

D. with

一、单项选择题

(     )1. —______ did you do during the winter vacation? —I visited my grandparents in the countryside and saw many changes there.

A. Where

B. What

C. When

D. How

(     )2. —______ was your life different 20 years ago? —People didn't have smartphones and the Internet was not popular.

A. Why

B. Who

C. How

D. What

(     )3. There ______ no tall buildings in this area 15 years ago, but now there ______ many skyscrapers.

A. were; are

B. are; were

C. was; is

D. is; was

(     )4. My father ______ to work by bike 10 years ago, but now he ______ the subway.

A. goes; takes

B. went; takes

C. went; took

D. goes; took

(     )5. We ______ protect the environment, because it is important for our future.

A. should

B. can

C. will

D. did

(     )6. After finishing the volunteer work, all of us ______ tired but happy.

A. am

B. is

C. were

D. are

(     )7. —Did you ______ the changes in your hometown when you went back last year? —Yes, I could hardly believe my eyes.

A. notice

B. noticed

C. noticing

D. notices

(     )8. The air ______ much fresher now than it ______ 10 years ago.

A. is; is

B. was; was

C. is; was

D. was; is

and stop throwing rubbish everywhere.

A. Why

B. Who

C. How

D. What

(     )10. —How did you ______ when you saw the great changes in your school? —I felt very excited and proud.

A. feel

B. felt

C. feels

D. feeling