1 Circle the correct word or phrase in brackets to complete each sentence. 圈出括号中恰当的单词或短语，补全句子。
(1) — The deadline for the project is close, and I haven’t started yet.
— You (had better/might) start working on it right away.
(2) You (need/had better) not just wait if you want to get this chance.
(3) I (needn’t/had better not) worry about things that happened before; I can’t change them.
(4) They’d better (not let/not to let) fear stop them from trying new things.
(5) You needn’t (to follow/follow) the crowd. Stay true to yourself.

(1) had better (2) had better (3) needn’t (4) not let (5) follow

【分析】
本题考查情态动词had better和need的用法，需先明确两者的含义、否定形式及动词搭配规则：had better表“最好（做/不做某事）”，否定式为had better not do，后接动词原形；need作情态动词时，否定式为needn't（不必），后接动词原形，作实义动词时否定式为don't need to do。结合每句语境，匹配正确选项即可。
【解析】
(1) 语境为项目截止日临近却未开始，对方建议“最好立刻开始”，had better表建议，might表“可能”，故选had better；
(2) 句意是若想获得机会不能只等待，需建议“最好不要等”，had better not do符合语境，need not表“不必”，故选had better；
(3) 句意是“不必担心过去的事”，needn't表“不必”，had better not表“最好不要”，故选needn’t；
(4) had better的否定式为had better not do，后接动词原形，故选not let；
(5) needn't作情态动词，后直接接动词原形，无需加to，故选follow。
【答案】
(1) had better (2) had better (3) needn’t (4) not let (5) follow
【知识点】
情态动词had better用法、情态动词need用法
【点评】
本题聚焦情态动词had better和need的基础用法，核心是区分两者的含义、否定形式及动词搭配，属于英语基础语法考点，只要掌握规则即可轻松作答。
【难度系数】
0.3

2 Rewrite the sentences using had better (not) or needn’t. 用 had better (not) 或 needn’t 改写句子。
(1) It’s not necessary to compare with others. Be yourself.
You . Be yourself.
(2) Take an umbrella with you if you don’t want to be wet all over.
You , or you may be wet all over.
(3) There is no need to hurry. We still have plenty of time.
We . We still have plenty of time.
(4) Things will get worse if you keep the trouble to yourself. Ask others for help.
You instead of keeping the trouble to yourself, or things will get worse.
(5) You won’t focus well tomorrow if you stay up too late.
You , or you won’t focus well tomorrow.

(1) needn’t compare with others
(2) had better take an umbrella with you
(3) needn’t hurry
(4) had better ask others for help
(5) had better not stay up too late

【分析】
首先明确had better (not)用于表达建议或警告，意为“最好（做/不做）某事”；needn’t用于表达没有必要做某事，意为“不必”。解题时需先理解每个句子的核心含义，判断是需要表达“不必”还是“最好（不）做”，再结合主语和动词短语，将对应情态动词短语填入空白处，确保语法正确、句意通顺。
【解析】
(1) 原句意为“没必要和别人比较，做你自己”，“没必要”对应needn’t，后接动词原形compare with others，故填needn’t compare with others。
(2) 原句意为“如果不想浑身湿透就带伞，否则会湿”，此处表达“最好带伞”的建议，对应had better，后接动词短语take an umbrella with you，故填had better take an umbrella with you。
(3) 原句意为“没必要着急，我们还有很多时间”，“没必要”对应needn’t，后接动词原形hurry，故填needn’t hurry。
(4) 原句意为“如果把烦恼藏起来会更糟，最好向别人求助”，此处表达“最好求助”的建议，对应had better，后接动词短语ask others for help，故填had better ask others for help。
(5) 原句意为“如果熬夜太晚明天就没法集中注意力，最好别熬夜太晚”，此处表达“最好别熬夜”的警告，对应had better not，后接动词短语stay up too late，故填had better not stay up too late。
【答案】
(1) needn’t compare with others
(2) had better take an umbrella with you
(3) needn’t hurry
(4) had better ask others for help
(5) had better not stay up too late
【知识点】
情态动词用法，句型转换
【点评】
本题考查情态动词had better (not)和needn’t的用法，属于基础句型转换题，需准确理解句意区分两个情态动词的含义，难度较低，适合基础阶段学生练习。
【难度系数】
0.3