01基础
She ________ (finish) her homework already.
答案：has finished
关键过程：already 常与现在完成时连用。
先完成，再核对。重点看第一步、关键关系与易错点。
02基础
They ________ (play) football when it began to rain.
答案：were playing
关键过程：过去某时正在发生，使用过去进行时。
03基础
We ________ (visit) the museum next Tuesday.
答案：will visit
关键过程：next Tuesday 表示将来。
04基础
He ________ (go) to school by bike every day.
答案：goes
关键过程：一般现在时，第三人称单数用 goes。
05基础
I ________ (read) this book twice.
答案：have read
关键过程：twice 表示到现在为止的次数，用现在完成时。
06巩固
The train ________ (leave) at eight tomorrow morning.
答案：leaves
关键过程：按时刻表发生的将来动作可用一般现在时。
07巩固
She ________ (clean) her room when I called her.
答案：was cleaning
关键过程：过去某时正在进行，用过去进行时。
08巩固
They ________ (not finish) the work yet.
答案：haven't finished
关键过程：yet 常用于现在完成时否定句。
09巩固
We ________ (have) lunch at home yesterday.
答案：had
关键过程：yesterday 表示一般过去时。
10巩固
Look! The children ________ (run) on the playground.
答案：are running
关键过程：Look 提示现在进行时。
11提升
By last Friday, we ________ (learn) ten new songs.
答案：had learned
关键过程：过去某时之前已完成，用过去完成时。
12提升
The library ________ (open) at nine every day.
答案：opens
关键过程：every day 提示一般现在时。
13提升
I don't know ________ he will come tomorrow.
答案：whether
关键过程：whether 引导宾语从句，表示“是否”。
14提升
The girl ________ is singing is my cousin.
答案：who
关键过程：先行词指人，在从句中作主语，用 who。
15提升
If it ________ (rain) tomorrow, we will stay at home.
答案：rains
关键过程：if 条件句遵循主将从现。
16综合
This is the book ________ I bought yesterday.
答案：that
关键过程：先行词是物，从句缺宾语，用 that/which。
17综合
He asked me ________ I had finished the work.
答案：if
关键过程：一般疑问句变宾语从句，用 if/whether。
18综合
The house ________ windows face south is warm.
答案：whose
关键过程：表示所属关系，用 whose。
19综合
I will call you when I ________ (arrive).
答案：arrive
关键过程：时间状语从句中，主将从现。
20综合
The reason ________ he was late was clear.
答案：why
关键过程：先行词 reason 在从句中作原因状语，用 why。
21综合
The teacher asked us ________ (listen) carefully.
答案：to listen
关键过程：ask somebody to do something。
22综合
I enjoy ________ (read) English stories.
答案：reading
关键过程：enjoy 后接动名词。
23阅读
Many students walk to school, but some take the bus. Walking is good exercise, and it also helps reduce traffic. Students should choose a safe route and pay attention to the traffic lights.
What is one benefit of walking to school?
答案：B
关键过程：短文明确提到 walking is good exercise。
24阅读
The school garden is cared for by Grade Five students. They water the plants every morning and record their growth in a notebook. At the end of the month, they share what they have learned.
Who takes care of the school garden?
答案：C
关键过程：首句说明由五年级学生照料花园。
25摘星 · 综合
把周末计划改写成一般将来时：
1) We visit the library. 2) I bring my camera. 3) Tom does not stay at home.
答案：1) We will visit the library. 2) I will bring my camera. 3) Tom will not stay at home.
关键过程：一般将来时肯定句用 will + 动词原形；否定句用 will not + 动词原形，不再保留 does。