Ⅳ.课文语法填空
With teenagers 1.________(grow) up, some of them have developed bad habits. These bad habits, if not 2.________(stop), could result in serious problems when they become 3.________(adult), such as tobacco or alcohol abuse. To prevent 4.________(harm) habits like these from affecting a teenager's life 5.________(be) essential.
According to modern psychology, to change bad habits, we must first analyse them using the “habit cycle”. We must first find out 6.________ the cue is. Then we must replace the old negative routine with something more positive. If successful, we will feel a sense of satisfaction and our bad habit may disappear. Breaking a bad habit is difficult, and 7.________ is easy to make excuses and give up. We need 8.________(make) up our minds and show some discipline, and make small changes over a period of time. There is no “magic pill” to help us, but the changes will ensure we have 9.________ happy and healthy life full 10.________ good habits！
Ⅳ.课文语法填空
1．growing 考查非谓语动词。此处为with复合结构。逻辑主语teenagers与grow之间为主谓关系，故填growing。
2．stopped 考查非谓语动词。分析句子结构可知，此处为if引导的条件状语从句的省略，省略了these bad habits are。因these bad habits与stop之间为逻辑上的动宾关系，故填stopped。
3．adults 考查名词的数。adult是可数名词，此处没有冠词，且与空前的they对应，故填adults。
4．harmful 考查形容词。空处修饰名词habits，表示“有害的”，故填harmful。
5．is 考查动词的时态和主谓一致。分析句子结构可知，空处所在句的主语是动词不定式短语“To prevent __4(harmful)__ habits like these from affecting a teenager's life”，动词不定式短语作主语时，谓语动词通常用单数形式。并且此处表示一般情况，故填is。
6．what 考查宾语从句。分析句子结构可知，“__6__ the cue is”在句中作“find out”的宾语，根据语境可知应填what。
7．it 考查代词。分析句子结构可知，“__7__ is easy to make excuses and give up”中“to make excuses and give up”为真正的主语，故空处应填形式主语it。
8．to make 考查非谓语动词。need to do sth.为固定搭配，表示“需要做某事”，故填to make。
9．a 考查冠词。have a/an... life表示“过着……的生活”，由空后的happy可知，填a。
10．of 考查介词。(be) full of...表示“充满……”，此处为形容词短语作后置定语。
With teenagers 1.________(grow) up, some of them have developed bad habits. These bad habits, if not 2.________(stop), could result in serious problems when they become 3.________(adult), such as tobacco or alcohol abuse. To prevent 4.________(harm) habits like these from affecting a teenager's life 5.________(be) essential.
According to modern psychology, to change bad habits, we must first analyse them using the “habit cycle”. We must first find out 6.________ the cue is. Then we must replace the old negative routine with something more positive. If successful, we will feel a sense of satisfaction and our bad habit may disappear. Breaking a bad habit is difficult, and 7.________ is easy to make excuses and give up. We need 8.________(make) up our minds and show some discipline, and make small changes over a period of time. There is no “magic pill” to help us, but the changes will ensure we have 9.________ happy and healthy life full 10.________ good habits！
Ⅳ.课文语法填空
1．growing 考查非谓语动词。此处为with复合结构。逻辑主语teenagers与grow之间为主谓关系，故填growing。
2．stopped 考查非谓语动词。分析句子结构可知，此处为if引导的条件状语从句的省略，省略了these bad habits are。因these bad habits与stop之间为逻辑上的动宾关系，故填stopped。
3．adults 考查名词的数。adult是可数名词，此处没有冠词，且与空前的they对应，故填adults。
4．harmful 考查形容词。空处修饰名词habits，表示“有害的”，故填harmful。
5．is 考查动词的时态和主谓一致。分析句子结构可知，空处所在句的主语是动词不定式短语“To prevent __4(harmful)__ habits like these from affecting a teenager's life”，动词不定式短语作主语时，谓语动词通常用单数形式。并且此处表示一般情况，故填is。
6．what 考查宾语从句。分析句子结构可知，“__6__ the cue is”在句中作“find out”的宾语，根据语境可知应填what。
7．it 考查代词。分析句子结构可知，“__7__ is easy to make excuses and give up”中“to make excuses and give up”为真正的主语，故空处应填形式主语it。
8．to make 考查非谓语动词。need to do sth.为固定搭配，表示“需要做某事”，故填to make。
9．a 考查冠词。have a/an... life表示“过着……的生活”，由空后的happy可知，填a。
10．of 考查介词。(be) full of...表示“充满……”，此处为形容词短语作后置定语。
