摘要：“want to do sth.”是固定用法，表示“想要做某事”，所以这里要用动词不定式“to buy”，答案选B。
一、单项选择题
1. I want ______ a new bike.
A. buy
B. to buy
C. buying
D. bought
2. She decided ______ to the park this weekend.
A. go
B. going
C. to go
D. went
3. The teacher told us ______ in the street.
A. not play
B. to not play
C. not to play
D. don't play
4. My mother often asks me ______ my room clean.
A. keep
B. keeping
C. to keep
D. kept
5. They hope ______ good grades in the exam.
A. get
B. getting
C. to get
D. got
6. He refused ______ the money.
A. accept
B. accepting
C. to accept
D. accepted
7. I'm glad ______ you here.
A. meet
B. meeting
C. to meet
D. met
8. It's important ______ English well.
A. learn
B. learning
C. to learn
D. learned
9. We are planning ______ a party next week.
A. have
B. having
C. to have
D. had
10. She seems ______ very happy today.
A. be
B. being
C. to be
D. was
二、用所给动词的适当形式填空
1. Tom wants ______ (join) the art club.
2. My parents told me ______ (not stay) out late.
3. The little boy hopes ______ (see) his favorite cartoon character.
4. It takes me half an hour ______ (get) to school by bike.
5. We decided ______ (visit) the Great Wall this summer.
试题讲解
单项选择题
1. “want to do sth.”是固定用法，表示“想要做某事”，所以这里要用动词不定式“to buy”，答案选B。
2. “decide to do sth.”意思是“决定做某事”，是固定搭配，因此选C。
3. “tell sb. not to do sth.”是“告诉某人不要做某事”的表达，这里要用动词不定式的否定形式“not to play”，答案是C。
4. “ask sb. to do sth.”表示“要求某人做某事”，所以用“to keep”，选C。
5. “hope to do sth.”是“希望做某事”的常用结构，答案为C。
6. “refuse to do sth.”意思是“拒绝做某事”，应选C。
7. “be glad to do sth.”表示“很高兴做某事”，所以选C。
8. “It is + 形容词 + to do sth.”是固定句型，其中“it”是形式主语，真正的主语是后面的动词不定式“to learn”，选C。
9. “plan to do sth.”表示“计划做某事”，要用动词不定式“to have”，答案是C。
10. “seem to do sth.”表示“似乎做某事”，这里用“to be”，选C。
用所给动词的适当形式填空
1. “want to do sth.”，所以填“to join”。
2. “tell sb. not to do sth.”，故填“not to stay”。
3. “hope to do sth.”，应填“to see”。
4. “It takes sb. some time to do sth.”，填“to get”。
5. “decide to do sth.”，填“to visit”。
来源：Frankie英语云课堂