第二单元语法课堂练习一、一般现在时讲解及练习基本用法（1）一般现在时常表示经常发生的动作或经常存在的状态, 表示此状态时,常和always, often, usually, every day, sometimes等表示时间的状语连用,有时候时间状语可以不表示出来Eg: I go to school every day.（2）表日常行为Eg: The boy wake up at seven o’clock, wash, dress quickly and run into the dining room for breakfast. They wait until they hear the bell and then go toschool.（3）表习惯，能力或现在的特征、状况Eg: Do you drive, Joho?Our monitor is always ready to help others.我们的班长总是乐于助人（4）表客观存在Eg: The earth moves round the sun. 地球围绕太阳旋转(表客观真理)（5）表示一个按规定、计划、安排要发生的事Eg: The train leaves at 7:40练习题：1. Tom is a worker. He _____ in a factory. His sisters _____ in a hospital.A. work/ workB. works/ workC. work/ works2. Who _____ English best in your class?A. speakB. speaksC. speaking3. Mrs. Read _____ the windows every day.A. is cleaningB. cleanC. cleans4. We _____ music and often _____ to music.A. like/ listenB. likes/ listensC. like/ are listening5. She _____ up at six in the morning.A. getB. getsC. getting6. On Sunday he sometimes _____ his clothes and sometimes _____ some shopping.A. wash/ doB. is washing/ is doingC. washes/ does7. The twins（双胞胎）usually _____ milk and bread for breakfast, but Jim _____ some coffee for it.A. have/ haveB. have/ hasC. has/ have8. Jenny ____ in an office. Her parents ____in a hospital.A work /worksB works /workC work /are workingD is working /work9. We will go shopping if it____ tomorrow.A don't rainB didn't rainC doesn't rainD isn't rain11. He said the sun ____in the east and ____in the west.A rose; setB rises; setsC rises, setD rise; sets12. Wang Mei ____ music and often ____ to music.A like; listenB likes; listensC like; are listeningD liking ; listen13. Jenny____ English every evening.A has studyB studiesC studyD studied14. She _____ up at six in the morning.A. getB. getsC. getting15. The students will go to the Summer Palace if it _____ tomorrow.A. don't rainB. doesn't rainC. won't rain16. The picture _______ nice.A. looksB.is lookedC. lookD.is looking17. Don't smoke until the plane ______ off.A. takesB. tookC. was takenD.is take19. You'd better ______ at home and ______ your homework.A. to stay, doB. stay, doC. to stay, to doD. stay, to do20. Uncle Wang knows _______ a washing machine.A. how to makeB. to makeC. how makingD. what to make二、频度副词、短语用法及练习一般现在时常常与always, usually, often, sometimes, seldom, hardly, never等频度副词连用，表示动作发生的频率。
这些频度副词按发生频率的高低依次为：always→usually→often→sometimes→seldom→hardly→never。
频度副词在句中的位置比较灵活，但通常放在行为动词之前，系动词、情态动词或助动词之后。
1. always 意为“总是，一直”，这是频率最高的词，表示动作反复，状态持续，不间断。
其反义词是never，意为“从不”。
如果要变为否定句，应将always改为never才能全部否定。
另外，当always与进行时态连用时，常表示“总是”，带有厌烦、不满或赞美等感情色彩。
如：Li Ping is always late for school. 李平上学总是迟到The boy is always asking for money. 这个小男孩总是要钱。
（表厌烦Li Ping is never late for school. 李平上学从不迟到。
（全部否定）2. usually 意为“通常”，表示习惯性动作或状态，很少例外。
如：We usually go to school at seven in the morning.我们通常在早上七点上学。
My mother and I usually go shopping on Sundays.我和妈妈通常在星期天去买东西。
3. often 意为“经常，时常”，表示反复性的动作或状态，中间有间断。
其反义词是seldom, 意为“很少，不常”。
often在句尾时常被very或quite修饰。
如：I often chat with my friends under the big tree.我经常在这棵大树下和朋友聊天。
He writes to his friends quite often. 他常给他的朋友写信。
4. sometimes 意为“有时”，表示动作偶尔发生，间隔较长。
其位置比较灵活，放在句首、句中、句末都可。
如：Sometimes we go to the cinema and at other times we go for a walk.有时我们去看电影，有时我们去散步。
I sometimes watch TV in the evening. 我有时晚上看电视。
My father has lunch in the factory sometimes.我父亲有时在工厂吃午饭。
5. seldom 意为“很少，不常”，表示否定意义。
如：The little girl seldom goes out. 这个小女孩很少外出。
6. hardly 具有否定意义，表示“几乎不、简直不”，除非特殊情况，否则不会发生。
如：The boy is so young that he could hardly understand it.这个孩子太小了，不可能懂得这件事。
7. never 意为“从来不，从来没有”，也表示否定意义，它表示从未发生的动作或情况，没有例外。
如：The boys never eat chocolate and the girls seldom eat it.男生从不吃巧克力，女生很少吃。
*另外，once a year (每年一次), twice a week (每周两次), three times a day (一天三次), every Saturday afternoon（每星期六下午）等，这些时间状语也表示频率，它们可以和频度副词用在同一个句子中，表达上没有重复。
如：We usually go to the cinema four times a month.对这些频度副词或短语进行提问，都用疑问词how often，表示“每（隔）多长时间做一次”的意思。
如：练习题1.—How often does your sister surf the Internet?—About .A. three timeB. three timesC. three time every dayD. three times a day2. —When is your father going to Hong Kong?—He is going there July 28th.A. onB. atC. inD. to3. —does it take you to watch TV?—About forty minutes.A. How longB. How muchC. How oftenD. How many4. —are you staying in Ottawa? —For two weeks.A. How longB. How manyC. How oftenD. How much7. ---Does Alice often work until 2 a.m.?---No, she ________ does.A. nearlyB. certainlyC. seldomD. always8. -Were you often late for school last term, Tom?-No, _______. I got to school early every day.A. AlwaysB. UsuallyC. SometimesD. Never9. -John sings so well. Has he ever been trained?-No. He learns all by himself. He¬¬ ________ goes to any training class.A. usuallyB. oftenC. neverD. even10. –Miss Gao is very popular with her students.-Yes. Her classes are ______ lively and interesting.A. seldomB. neverC. sometimesD. always11. Sandy is so careful that she ________ makes mistakes in her homework.A. usuallyB. seldomC. oftenD. always12. Lisa loves reading. She __________ in her free time.A always sleepsB often reads novelsC sometimes sleepsD seldom reads novels13. Linda: __________ does John go shopping?Judy: He seldom goes shopping, maybe once or twice a year.A HowB How muchC How oftenD How many14. Mary does not always go to school early. She's __________ late for school.A alwaysB usuallyC sometimesD never15. She __________ in her bed, but it is not good to her eyes.A always sleepsB never studiesC often studiesD seldom sleeps16. He __________ hungry after school, so he eats a snack before he goes home.A is neverB always isC never isD is always17. A: What do you usually do on weekends?B: ______________________________.A . I usually visit my grandmother.B .I never watch TV on weekends.C .I seldom visit my grandfather.D .I usually don’t go to the zoo.Echonar。