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(1) Simple present tense of the verb to be
We use the Simple present tense to talk about facts and states.
(2) Simple present tense of the verb to do
We use the simple present tense when we talk about :
a. thing that we often do
b. things that are always true
c. hings that are true now
2. Adverbial of time： always、often、sometimes、usually、never、seldom、every…; once / twice a week (day…)、in spring、in the morning、
on Sunday(morning),etc.
3. Structure：
(1 ) be（am/is/are）动词
(2 ) do、does 行为动词
否定形式: (1 ) am/is/are+not
(2 ) don’t+动原； doesn’t +动原
一般疑问句： (1) 把be动词放于句首
(2) Do/Does+主语+动原+其它？
4. 引导学生发现和总结一般现在时中动词的三单式变化规则
（1）Most verbs + s ; 在清辅音后读/s/, 在元音和浊辅音后读/z/ 。
eg: park---parks; read---reads; write---writes; enjoy---enjoys
（2）Verbs ending in ch, sh, ss or x+ es, 读/iz/, o结尾的读/z/ 。
eg: wish---wishes; dress---dresses; do---does; fix--- fixes;
watch---watches; finish---finishes;
（3）Verbs ending in a consonant + y , 去y + ies, 读/iz/。
eg: carry---carries; study---studies; worry---worries;
hurry---hurries; cry--cries;
（4）We change have to has when it comes after he, she or it.
（5）am和are 的第三人称为 is
Step 2 拓展练习（详见课件）
Task2 Present ContinuousTense
1. Conception：We use the present continuous tense to talk about things