3. 连词成句。
(1) subjects, like, what, does, he (?)
What ______ ______ he ______?
(2) always, Su Hai, picnic, has, weekends, a, at (.)
Su Hai ______ ______ a ______ at ______.
(3) wrong, you, what's, with (?)
What's ______ ______ ______?
(4) at, she, dancing, good, is (.)
She ______ ______ at ______.
(5) Chinese, does, have, lessons, school, he, after (?)______

subjects
does
like
always
has
picnic
weekends
wrong
with
you
is
good
dancing
Does he have Chinese lessons after school?

4. 从括号中选择合适的单词填空。
(1) Let ______ (we/us) go and play basketball.
(2) What's wrong with ______ (she/her)?
(3) Liu Tao ______ (study/studies) English after school.
(4) How many ______ (tree/trees) are there in the park?
(5) I ______ (sometime/sometimes) go to the cinema with my friends.
(6) ______ (One/First), I send the email to my friend.

us
her
studies
trees
sometimes
First

(1) “Let”后接宾格代词作为宾语，“we”是主格代词，“us”是宾格代词，所以选择“us”。
(2) “with”是介词，后接宾格代词作为宾语，“she”是主格代词，“her”是宾格代词，所以选择“her”。
(3) 主语“Liu Tao”是第三人称单数，一般现在时动词要用第三人称单数形式，“study”是原形，“studies”是第三人称单数形式，所以选择“studies”。
(4) “How many”后接可数名词复数形式，“tree”是单数形式，“trees”是复数形式，所以选择“trees”。
(5) “sometime”表示“某个时候”，“sometimes”表示“有时”，根据句意应选择“sometimes”。
(6) 根据句意和语法，这里需要表示顺序的词，“One”是基数词，“First”是序数词，表示“首先”，所以选择“First”。

5. 看图,完成对话。
(1) A: What ______ your father ______?
B: He is a ______. He ______ sick people.
A: What ______ your mother?
B: She is a factory ______. She ______ sweets.

(2) A: What ______ you do ______ weekends?
B: I usually ______ ______ with Liu Tao. I also ______ on the Internet. I sometimes ______ ______ ______ and ______ ______ ______ with my family in the park.

does
do
doctor
helps
about
worker
makes
do
at
play
football
chat
fly
a
kite
have
a
picnic

(1) 第一组对话询问职业，用“does...do”，回答根据图片是医生（doctor）和“helps”；第二组询问母亲职业，用“about”，回答是工厂工人（worker）和“makes”。
(2) 询问周末做什么用“do...on”，回答根据图片是“play football”，“surf”，“go fishing”，“have a picnic”。