动词要用过去式。例如：Yesterday。I went to the park.（昨天，我去了公园）

3、现在进行时

现在进行时用于描述正在进行的动作，用be动词的现在分词（am/is/are+动词ing）构成。例如：I am XXX.（我现在正在为考试研究）

4、过去进行时

过去进行时用于描述过去某个时间正在进行的动作，用be动词的过去分词（was/were+动词ing）构成。例如：At 8pm last night。I was watching TV.（昨晚8点，我正在看电视）

5、将来时

将来时用于描述将要发生的动作或状态，用will或be going to加动词原形构成。例如：I will visit my grandparents XXX.（我下周末会去看望我的祖父母）

1.一般现在时

一般现在时的动词变化取决于主语是否为第三人称单数。如果是第三人称单数，动词需要加s或es，否则动词使用原形。此外，如果句子中没有具体的时间状语，或者使用usually、often、everyday、sometimes等词语，那么这个句子就是一般现在时。

2.一般过去时

一般过去时的be动词变化为was或were。was用于第一人称单数和第三人称单数，而were用于第二人称单数和所有复数。动词的变化只有一种情况，即加ed。与一般现在时不同的是，主语的人称和单复数不影响动词的变化。另外，如果句子中有表示过去的时间状语，那么这个句子就是一般过去时。

3.一般将来时

一般将来时的构成形式为Be going to+动词原形，或will+动词原形。一般将来时表示动作即将发生或某人打算做某事，常常使用tomorrow、soon、XXX等词语。

4.现在进行时

现在进行时的构成形式为Be动词+动词的ing形式。如果句子中既有be动词，又有动词，并且动词加了ing，那么这个句子就是现在进行时。现在进行时表示动作正在进行或事情正在发生，常常使用now、look、listen等词语。

此外，需要注意的是，动词过去式和现在分词的变化有一些不规则的情况。

There are many irregular verbs in English。which means that their past tense and past participle forms do not follow a predictable pattern。For example。the verb"be"has the past tense forms"was"and"were,"and the present participle form"being."The verb"make"has the past tense form"made"and the present participle form"making."Other irregular verbs include"begin,""may,""build,""mean,""buy,""meet,""can,""must,""come,""put,""copy,""read,""do,""ride,""draw,""ring,""drink,""run,""drive,""say,""eat,""see,""feel,""sing,""find,""sit,""fly,""sleep,""et,""speak,""get,""spend,""give,""stand,""go,""sweep,""grow,""swim,""have,""take,""hear,""teach,""keep,""tell,""know,""think,"and"learn."

It'XXX in English。For example。we use the XXX form to form the present perfect tense。which is used to XXX up to the present。

XXX irregular verbs。XXX。For example。the verb"walk"has the past tense form"walked"and the present participle form"walking."

XXX。it'XXX。You can do this by reading and XXX English materials。as well as by practicing speaking and writing in English。With practice。you XXX.

一、词汇

一）一般过去时态

一般过去时态表示在过去的某个时间发生的动作或存在的状态，通常与表示过去的时间状语连用，如yesterday。last weekend。last Saturday等。基本句型为：“主语+动词的过去式+其他”。例如：“What did you do last weekend?”，“I played football last weekend.”

规则动词过去式的构成

1.一般在动词原形末尾加-ed，如play—played。

2.词尾是e的动词直接加-d，如dance—danced。

3.末尾只有一个辅音字母的重读闭音节词，先双写这个辅音字母，再加-ed，（停止）ped。

4.结尾是“辅音字母+y”的动词，变“y”为“i”，再加-ed，如study--studied。

一些不规则变化的动词过去式

am/is—was，are—were，see—saw，take—took，read—read，sleep（睡觉）—slept，go—went，come—came，swim—swam，fly—flew，e—became，do—did，get—got，have—had，draw—drew，say—said，hurt—hurt，win—won，tell—told，will—would，eat—ate，cut（切）--cut，sit（坐）—sat，think—thought，find—found，make—made，drink—drank，run（跑）—ran，wear—wore，begin（开始）—began，buy—bought，give（给）—gave，sing—sang。

二）一般现在时态

一般现在时态表示包括现在时间在内的一段时间内经常发生的动作或存在的状态，表示惯性或客观存在的事实和真理，通常与often。always。usually。sometimes。every day等连用。基本句型分为两种情况：

1.主语（非第三人称）+动词原形+其他。例如：“What do you usually do on the weekend?”，“I usually do…”

2.主语（第三人称单数）+动词原形+s/es+其他。例如：“He often goes to the park on Sundays.”

题目：XXX

On weekends。many students have homework to do。Sarah。for example。usually XXX.

To form the third person singular of a verb。simply add-s to the end of most verbs。However。if the verb ends in s。x。ch。or sh。add-es instead。For verbs XXX plus y。change the y to i and add-es。There are also some XXX.

When we want to XXX。we use the present continuous tense。To form this tense。we use the verb"to be"followed by the present participle(-ing)。For example。"I am doing my homework right now."

XXX XXX future。We can use"will"or"be going to"plus the base form of the verb to form the simple future tense。For example。"I will go to Beijing tomorrow."

When we want to compare two things。XXX form the comparative form of most adjectives。simply add-er to the end。However。if the adjective ends in e。add-r instead。For adjectives XXX plus y。change the y to i and add-er。For adjectives XXX。double the consonant and add-er.